Question: From September 14, 2019 to April 10, 2020, what proportion of days had Corteva's close greater than the middle of Moving Average Envelope? (Unit: %) (Standard parameters: middle band SMA(20), upper and lower bands +/- 10%) Using unadjusted prices, write down the indicator formula, collect the raw data, calculate the answer, and keep four decimal places. Please list the raw data and key calculation process.
Formula: Middle = SMA_n(P); Upper = Middle * 1.1; Lower = Middle * 0.9
Data:
date,close,low
2019-08-19,30.56999969482422,30.25
2019-08-20,30.26000022888184,30.09000015258789
2019-08-21,30.57999992370605,30.280000686645508
2019-08-22,30.290000915527344,30.209999084472656
2019-08-23,29.049999237060547,28.809999465942383
2019-08-26,29.020000457763672,28.670000076293945
2019-08-27,28.729999542236328,28.53499984741211
2019-08-28,29.170000076293945,28.309999465942383
2019-08-29,29.709999084472656,29.520000457763672
2019-08-30,29.31999969482422,29.26000022888184
2019-09-03,28.229999542236328,28.0
2019-09-04,28.43000030517578,28.170000076293945
2019-09-05,28.459999084472656,27.950000762939453
2019-09-06,28.38999938964844,27.88999938964844
2019-09-09,28.75,28.020000457763672
2019-09-10,28.559999465942383,28.13999938964844
2019-09-11,29.270000457763672,28.11000061035156
2019-09-12,29.899999618530277,28.899999618530277
2019-09-13,30.1200008392334,29.899999618530277
2019-09-16,29.399999618530277,28.84000015258789
2019-09-17,28.979999542236328,28.959999084472656
2019-09-18,29.149999618530277,28.75
2019-09-19,29.13999938964844,29.059999465942383
2019-09-20,28.920000076293945,28.850000381469727
2019-09-23,28.8799991607666,28.44499969482422
2019-09-24,28.239999771118164,27.961000442504883
2019-09-25,28.200000762939453,27.770000457763672
2019-09-26,27.63999938964844,27.489999771118164
2019-09-27,27.799999237060547,27.309999465942383
2019-09-30,28.0,27.76000022888184
2019-10-01,27.549999237060547,27.229999542236328
2019-10-02,26.940000534057617,26.6200008392334
2019-10-03,26.8799991607666,26.51000022888184
2019-10-04,25.88999938964844,25.801000595092773
2019-10-07,26.0,25.729999542236328
2019-10-08,26.21999931335449,25.59000015258789
2019-10-09,26.170000076293945,25.739999771118164
2019-10-10,25.729999542236328,25.709999084472656
2019-10-11,26.65999984741211,25.989999771118164
2019-10-14,26.32999992370605,26.200000762939453
2019-10-15,26.700000762939453,26.065000534057617
2019-10-16,26.8700008392334,26.290000915527344
2019-10-17,26.770000457763672,26.65999984741211
2019-10-18,26.040000915527344,25.63999938964844
2019-10-21,25.5,25.43000030517578
2019-10-22,25.979999542236328,25.229999542236328
2019-10-23,25.61000061035156,25.21500015258789
2019-10-24,26.3700008392334,25.5
2019-10-25,26.729999542236328,26.239999771118164
2019-10-28,26.770000457763672,26.600000381469727
2019-10-29,26.780000686645508,26.420000076293945
2019-10-30,27.479999542236328,26.90999984741211
2019-10-31,26.3799991607666,25.25
2019-11-01,26.18000030517578,25.51000022888184
2019-11-04,25.739999771118164,25.649999618530277
2019-11-05,25.65999984741211,24.76000022888184
2019-11-06,26.1299991607666,25.71999931335449
2019-11-07,26.149999618530277,26.1200008392334
2019-11-08,26.200000762939453,25.90999984741211
2019-11-11,26.739999771118164,25.690000534057617
2019-11-12,26.71999931335449,26.530000686645508
2019-11-13,25.71999931335449,25.459999084472656
2019-11-14,26.3799991607666,25.709999084472656
2019-11-15,25.479999542236328,25.434999465942383
2019-11-18,25.479999542236328,25.36000061035156
2019-11-19,25.700000762939453,25.309999465942383
2019-11-20,24.979999542236328,24.915000915527344
2019-11-21,25.11000061035156,24.93000030517578
2019-11-22,25.540000915527344,25.030000686645508
2019-11-25,25.93000030517578,25.649999618530277
2019-11-26,25.8799991607666,25.700000762939453
2019-11-27,26.049999237060547,25.68000030517578
2019-11-29,26.020000457763672,25.549999237060547
2019-12-02,25.18000030517578,25.040000915527344
2019-12-03,24.649999618530277,24.299999237060547
2019-12-04,24.84000015258789,24.6200008392334
2019-12-05,24.81999969482422,24.100000381469727
2019-12-06,25.26000022888184,24.940000534057617
2019-12-09,25.770000457763672,25.395000457763672
2019-12-10,25.8700008392334,25.420000076293945
2019-12-11,26.200000762939453,25.82999992370605
2019-12-12,26.979999542236328,26.0
2019-12-13,26.489999771118164,26.459999084472656
2019-12-16,27.549999237060547,26.850000381469727
2019-12-17,26.770000457763672,26.57999992370605
2019-12-18,27.81999969482422,26.489999771118164
2019-12-19,27.709999084472656,27.459999084472656
2019-12-20,28.18000030517578,27.440000534057617
2019-12-23,28.65999984741211,28.100000381469727
2019-12-24,28.809999465942383,28.3799991607666
2019-12-26,29.190000534057617,28.6299991607666
2019-12-27,29.13999938964844,28.979999542236328
2019-12-30,28.86000061035156,28.790000915527344
2019-12-31,29.559999465942383,28.809999465942383
2020-01-02,28.739999771118164,28.71999931335449
2020-01-03,28.399999618530277,28.36000061035156
2020-01-06,28.36000061035156,27.975000381469727
2020-01-07,28.46999931335449,28.170000076293945
2020-01-08,28.700000762939453,28.100000381469727
2020-01-09,28.729999542236328,28.3799991607666
2020-01-10,28.350000381469727,28.31999969482422
2020-01-13,28.57999992370605,28.155000686645508
2020-01-14,28.63999938964844,28.299999237060547
2020-01-15,28.68000030517578,28.475000381469727
2020-01-16,29.21999931335449,28.524999618530277
2020-01-17,28.299999237060547,27.6299991607666
2020-01-21,27.81999969482422,27.709999084472656
2020-01-22,28.15999984741211,27.5
2020-01-23,28.450000762939453,27.51000022888184
2020-01-24,27.950000762939453,27.709999084472656
2020-01-27,27.15999984741211,26.96999931335449
2020-01-28,27.559999465942383,27.0
2020-01-29,27.799999237060547,27.51000022888184
2020-01-30,29.239999771118164,27.600000381469727
2020-01-31,28.920000076293945,28.459999084472656
2020-02-03,30.1200008392334,28.81999969482422
2020-02-04,30.950000762939453,30.045000076293945
2020-02-05,31.709999084472656,29.690000534057617
2020-02-06,31.59000015258789,31.299999237060547
2020-02-07,31.040000915527344,30.795000076293945
2020-02-10,30.600000381469727,30.46500015258789
2020-02-11,30.51000022888184,30.40999984741211
2020-02-12,30.940000534057617,30.649999618530277
2020-02-13,30.600000381469727,30.45499992370605
2020-02-14,30.709999084472656,30.57999992370605
2020-02-18,31.399999618530277,30.61000061035156
2020-02-19,31.520000457763672,31.21999931335449
2020-02-20,31.56999969482422,31.31999969482422
2020-02-21,31.21999931335449,31.18000030517578
2020-02-24,30.65999984741211,30.270000457763672
2020-02-25,28.3799991607666,28.229999542236328
2020-02-26,28.5,28.31999969482422
2020-02-27,27.290000915527344,27.239999771118164
2020-02-28,27.200000762939453,25.86000061035156
2020-03-02,28.239999771118164,26.86199951171875
2020-03-03,27.920000076293945,27.489999771118164
2020-03-04,28.899999618530277,27.809999465942383
2020-03-05,27.309999465942383,27.15999984741211
2020-03-06,25.299999237060547,24.920000076293945
2020-03-09,23.06999969482422,22.8700008392334
2020-03-10,25.90999984741211,23.8799991607666
2020-03-11,25.0,24.450000762939453
2020-03-12,22.34000015258789,22.26000022888184
2020-03-13,24.81999969482422,21.549999237060547
2020-03-16,20.739999771118164,20.565000534057617
2020-03-17,22.670000076293945,20.71999931335449
2020-03-18,21.56999969482422,20.3799991607666
2020-03-19,23.26000022888184,20.540000915527344
2020-03-20,22.530000686645508,21.11000061035156
2020-03-23,21.920000076293945,21.420000076293945
2020-03-24,22.32999992370605,21.5
2020-03-25,23.399999618530277,22.13999938964844
2020-03-26,24.13999938964844,22.88500022888184
2020-03-27,23.209999084472656,22.665000915527344
2020-03-30,24.09000015258789,22.90999984741211
2020-03-31,23.5,23.350000381469727
2020-04-01,22.51000022888184,22.350000381469727
2020-04-02,22.239999771118164,21.816999435424805
2020-04-03,22.6200008392334,22.1200008392334
2020-04-06,24.26000022888184,23.21999931335449
2020-04-07,24.530000686645508,24.350000381469727
2020-04-08,26.049999237060547,24.40999984741211
2020-04-09,27.93000030517578,26.200000762939453

Indicator data:
date,Upper,Middle,Lower,close
2019-09-16,32.241549844741826,29.3104998588562,26.379449872970582,29.399999618530277
2019-09-17,32.15409983634949,29.230999851226805,26.307899866104126,28.979999542236328
2019-09-18,32.09304980278015,29.175499820709227,26.257949838638304,29.149999618530277
2019-09-19,32.01384977340698,29.103499794006346,26.19314981460571,29.13999938964844
2019-09-20,31.938499727249148,29.034999752044676,26.131499776840208,28.920000076293945
2019-09-23,31.92914972305298,29.02649974822998,26.123849773406985,28.8799991607666
2019-09-24,31.886249685287478,28.987499713897705,26.088749742507936,28.239999771118164
2019-09-25,31.85709975242615,28.960999774932862,26.064899797439576,28.200000762939453
2019-09-26,31.772949714660648,28.884499740600585,25.996049766540526,27.63999938964844
2019-09-27,31.66789972305298,28.78899974822998,25.910099773406984,27.799999237060547
2019-09-30,31.59529973983765,28.72299976348877,25.85069978713989,28.0
2019-10-01,31.557899723052984,28.688999748229982,25.820099773406984,27.549999237060547
2019-10-02,31.475949735641482,28.61449975967407,25.753049783706665,26.940000534057617
2019-10-03,31.38904973983765,28.53549976348877,25.681949787139892,26.8799991607666
2019-10-04,31.25154973983765,28.41049976348877,25.56944978713989,25.88999938964844
2019-10-07,31.10029973983765,28.27299976348877,25.445699787139894,26.0
2019-10-08,30.971599731445316,28.155999755859376,25.34039978027344,26.21999931335449
2019-10-09,30.80109971046448,28.00099973678589,25.2008997631073,26.170000076293945
2019-10-10,30.571749706268314,27.79249973297119,25.01324975967407,25.729999542236328
2019-10-11,30.381449651718142,27.619499683380127,24.857549715042115,26.65999984741211
2019-10-14,30.21259966850281,27.465999698638917,24.719399728775027,26.32999992370605
2019-10-15,30.08719973564148,27.351999759674072,24.616799783706664,26.700000762939453
2019-10-16,29.961799802780153,27.237999820709227,24.514199838638305,26.8700008392334
2019-10-17,29.83144986152649,27.11949987411499,24.407549886703492,26.770000457763672
2019-10-18,29.67304990768433,26.97549991607666,24.277949924468995,26.040000915527344
2019-10-21,29.487149953842167,26.80649995803833,24.125849962234497,25.5
2019-10-22,29.362849941253664,26.693499946594237,24.024149951934813,25.979999542236328
2019-10-23,29.22039993286133,26.563999938964844,23.90759994506836,25.61000061035156
2019-10-24,29.150550012588504,26.500500011444093,23.850450010299685,26.3700008392334
2019-10-25,29.091700029373172,26.44700002670288,23.802300024032593,26.729999542236328
2019-10-28,29.024050054550173,26.385500049591066,23.74695004463196,26.770000457763672
2019-10-29,28.981700134277347,26.347000122070312,23.712300109863282,26.780000686645508
2019-10-30,29.011400079727174,26.374000072479248,23.736600065231325,27.479999542236328
2019-10-31,28.983900079727178,26.34900007247925,23.714100065231325,26.3799991607666
2019-11-01,28.999850130081178,26.363500118255615,23.727150106430056,26.18000030517578
2019-11-04,28.98555011749268,26.350500106811523,23.715450096130372,25.739999771118164
2019-11-05,28.954750146865845,26.322500133514403,23.690250120162965,25.65999984741211
2019-11-06,28.952550096511843,26.320500087738036,23.688450078964234,26.1299991607666
2019-11-07,28.975650100708013,26.341500091552735,23.70735008239746,26.149999618530277
2019-11-08,28.950350151062015,26.318500137329103,23.686650123596195,26.200000762939453
2019-11-11,28.97290014266968,26.339000129699706,23.705100116729735,26.739999771118164
2019-11-12,28.974000062942505,26.340000057220458,23.706000051498414,26.71999931335449
2019-11-13,28.910749979019165,26.282499980926513,23.65424998283386,25.71999931335449
2019-11-14,28.889299907684325,26.26299991607666,23.636699924468992,26.3799991607666
2019-11-15,28.85849983215332,26.23499984741211,23.611499862670897,25.479999542236328
2019-11-18,28.85739980697632,26.233999824523927,23.610599842071537,25.479999542236328
2019-11-19,28.841999874114993,26.219999885559083,23.597999897003177,25.700000762939453
2019-11-20,28.807349815368653,26.18849983215332,23.56964984893799,24.979999542236328
2019-11-21,28.738049802780154,26.12549982070923,23.512949838638306,25.11000061035156
2019-11-22,28.672599878311157,26.065999889373778,23.459399900436402,25.540000915527344
2019-11-25,28.626399869918824,26.023999881744384,23.421599893569947,25.93000030517578
2019-11-26,28.576899785995487,25.97899980545044,23.381099824905395,25.8799991607666
2019-11-27,28.49824976921082,25.90749979019165,23.316749811172485,26.049999237060547
2019-11-29,28.478449840545657,25.889499855041503,23.300549869537353,26.020000457763672
2019-12-02,28.423449840545654,25.839499855041502,23.255549869537354,25.18000030517578
2019-12-03,28.363499832153323,25.78499984741211,23.2064998626709,24.649999618530277
2019-12-04,28.31839984893799,25.743999862670897,23.169599876403808,24.84000015258789
2019-12-05,28.246349878311158,25.67849988937378,23.1106499004364,24.81999969482422
2019-12-06,28.197399911880495,25.63399991989136,23.070599927902222,25.26000022888184
2019-12-09,28.173749895095828,25.612499904632568,23.05124991416931,25.770000457763672
2019-12-10,28.125899953842165,25.56899995803833,23.012099962234497,25.8700008392334
2019-12-11,28.09730003356934,25.54300003051758,22.98870002746582,26.200000762939453
2019-12-12,28.16660004615784,25.60600004196167,23.045400037765503,26.979999542236328
2019-12-13,28.172650079727177,25.61150007247925,23.050350065231324,26.489999771118164
2019-12-16,28.286500062942505,25.715000057220458,23.143500051498414,27.549999237060547
2019-12-17,28.35745011329651,25.779500102996828,23.201550092697147,26.770000457763672
2019-12-18,28.474050054550176,25.885500049591066,23.29695004463196,27.81999969482422
2019-12-19,28.62420002937317,26.02200002670288,23.419800024032593,27.709999084472656
2019-12-20,28.793050012588505,26.175500011444093,23.557950010299685,28.18000030517578
2019-12-23,28.964649953842162,26.33149995803833,23.698349962234495,28.65999984741211
2019-12-24,29.12304990768433,26.47549991607666,23.827949924468996,28.809999465942383
2019-12-26,29.305099983215335,26.64099998474121,23.97689998626709,29.190000534057617
2019-12-27,29.47504999160767,26.795499992370605,24.115949993133544,29.13999938964844
2019-12-30,29.63125,26.9375,24.243750000000002,28.86000061035156
2019-12-31,29.872149953842168,27.15649995803833,24.4408499622345,29.559999465942383
2020-01-02,30.0970999622345,27.360999965667723,24.62489996910095,28.739999771118164
2020-01-03,30.292899932861328,27.538999938964842,24.78509994506836,28.399999618530277
2020-01-06,30.487599983215333,27.71599998474121,24.94439998626709,28.36000061035156
2020-01-07,30.66414993286133,27.876499938964844,25.08884994506836,28.46999931335449
2020-01-08,30.825299949646,28.022999954223632,25.22069995880127,28.700000762939453
2020-01-09,30.98259987831116,28.16599988937378,25.349399900436403,28.729999542236328
2020-01-10,31.100849857330324,28.27349987030029,25.446149883270262,28.350000381469727
2020-01-13,31.18884987831116,28.35349988937378,25.518149900436402,28.57999992370605
2020-01-14,31.307099857330325,28.46099987030029,25.61489988327026,28.63999938964844
2020-01-15,31.36924991607666,28.517499923706055,25.66574993133545,28.68000030517578
2020-01-16,31.503999853134157,28.639999866485596,25.775999879837038,29.21999931335449
2020-01-17,31.530399827957158,28.663999843597413,25.79759985923767,28.299999237060547
2020-01-21,31.536449861526492,28.66949987411499,25.802549886703492,27.81999969482422
2020-01-22,31.53534983634949,28.668499851226805,25.801649866104125,28.15999984741211
2020-01-23,31.523799886703493,28.657999897003172,25.792199907302855,28.450000762939453
2020-01-24,31.476499958038332,28.614999961853027,25.753499965667725,27.950000762939453
2020-01-27,31.364849920272828,28.51349992752075,25.662149934768678,27.15999984741211
2020-01-28,31.277949924468995,28.43449993133545,25.591049938201905,27.559999465942383
2020-01-29,31.219649848937994,28.3814998626709,25.54334987640381,27.799999237060547
2020-01-30,31.202049865722657,28.365499877929686,25.52894989013672,29.239999771118164
2020-01-31,31.21194988250733,28.374499893188478,25.53704990386963,28.920000076293945
2020-02-03,31.306549949645998,28.460499954223632,25.61444995880127,30.1200008392334
2020-02-04,31.448999958038332,28.589999961853028,25.730999965667724,30.950000762939453
2020-02-05,31.627199945449835,28.751999950408937,25.876799955368043,31.709999084472656
2020-02-06,31.786149911880496,28.896499919891358,26.006849927902223,31.59000015258789
2020-02-07,31.9131999874115,29.011999988555907,26.11079998970032,31.040000915527344
2020-02-10,32.036949987411504,29.124499988555907,26.21204998970032,30.600000381469727
2020-02-11,32.14310000419617,29.221000003814698,26.29890000343323,30.51000022888184
2020-02-12,32.269600067138676,29.336000061035158,26.402400054931643,30.940000534057617
2020-02-13,32.37520007133484,29.432000064849852,26.488800058364866,30.600000381469727
2020-02-14,32.45715005874634,29.506500053405762,26.555850048065185,30.709999084472656
2020-02-18,32.627650079727175,29.66150007247925,26.695350065231324,31.399999618530277
2020-02-19,32.83115012168884,29.84650011062622,26.861850099563597,31.520000457763672
2020-02-20,33.01870011329651,30.017000102996825,27.015300092697142,31.56999969482422
2020-02-21,33.17105003356934,30.15550003051758,27.139950027465822,31.21999931335449
2020-02-24,33.320099983215336,30.290999984741212,27.261899986267093,30.65999984741211
2020-02-25,33.38719994544983,30.351999950408935,27.31679995536804,28.3799991607666
2020-02-26,33.438899974823,30.398999977111817,27.359099979400636,28.5
2020-02-27,33.410850067138675,30.373500061035156,27.33615005493164,27.290000915527344
2020-02-28,33.298650121688844,30.27150011062622,27.2443500995636,27.200000762939453
2020-03-02,33.26125010490418,30.23750009536743,27.21375008583069,28.239999771118164
2020-03-03,33.140250062942506,30.12750005722046,27.114750051498415,27.920000076293945
2020-03-04,33.0275,30.025,27.0225,28.899999618530277
2020-03-05,32.785500020980834,29.805000019073486,26.824500017166137,27.309999465942383
2020-03-06,32.439549970626835,29.49049997329712,26.541449975967407,25.299999237060547
2020-03-09,32.00119990348816,29.09199991226196,26.182799921035766,23.06999969482422
2020-03-10,31.743249874114994,28.857499885559083,25.971749897003175,25.90999984741211
2020-03-11,31.440199861526494,28.58199987411499,25.723799886703492,25.0
2020-03-12,30.967199840545657,28.151999855041502,25.33679986953735,22.34000015258789
2020-03-13,30.649299802780153,27.862999820709227,25.076699838638305,24.81999969482422
2020-03-16,30.100949840545656,27.364499855041505,24.628049869537353,20.739999771118164
2020-03-17,29.620799865722656,26.927999877929686,24.23519989013672,22.670000076293945
2020-03-18,29.073549823760988,26.430499839782716,23.787449855804443,21.56999969482422
2020-03-19,28.616499853134158,26.014999866485596,23.413499879837037,23.26000022888184
2020-03-20,28.138549928665164,25.580499935150147,23.022449941635134,22.530000686645508
2020-03-23,27.657849941253666,25.14349994659424,22.629149951934817,21.920000076293945
2020-03-24,27.32509998321533,24.84099998474121,22.356899986267088,22.32999992370605
2020-03-25,27.0445999622345,24.585999965667725,22.127399969100953,23.399999618530277
2020-03-26,26.871349878311158,24.42849988937378,21.9856499004364,24.13999938964844
2020-03-27,26.651899785995486,24.22899980545044,21.806099824905395,23.209999084472656
2020-03-30,26.42364980697632,24.021499824523925,21.619349842071532,24.09000015258789
2020-03-31,26.180549802780153,23.800499820709227,21.420449838638305,23.5
2020-04-01,25.82909983634949,23.480999851226805,21.132899866104125,22.51000022888184
2020-04-02,25.550249853134154,23.227499866485594,20.904749879837034,22.239999771118164
2020-04-03,25.402849941253663,23.09349994659424,20.784149951934815,22.6200008392334
2020-04-06,25.468299970626834,23.15299997329712,20.83769997596741,24.26000022888184
2020-04-07,25.39240001678467,23.084000015258788,20.77560001373291,24.530000686645508
2020-04-08,25.450149974823002,23.136499977111818,20.822849979400637,26.049999237060547
2020-04-09,25.757599983215336,23.415999984741212,21.074399986267093,27.93000030517578

Answer: 42.3611