Question: For GoDaddy from February 26, 2023 to April 23, 2023, what percentage of days had the open greater than the Donchian Channel middle channel? (Unit: %) (Standard parameters: 20-period high/low, middle band is their average) 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: Upper = max_{i=0}^{n-1} H_{t-i}; Lower = min_{i=0}^{n-1} L_{t-i}; Middle = (Upper + Lower) / 2
Data:
date,high,low,open
2023-01-30,82.19999694824219,81.08000183105469,81.75
2023-01-31,82.48999786376953,81.38999938964844,81.7300033569336
2023-02-01,83.2030029296875,81.48999786376953,82.1500015258789
2023-02-02,85.31999969482422,83.51000213623047,84.1500015258789
2023-02-03,83.93000030517578,82.16999816894531,82.30999755859375
2023-02-06,83.04499816894531,81.11000061035156,82.58000183105469
2023-02-07,83.66000366210938,80.05999755859375,80.75
2023-02-08,83.41000366210938,82.08999633789062,83.22000122070312
2023-02-09,83.43000030517578,81.13999938964844,82.80999755859375
2023-02-10,81.25,79.56999969482422,81.08000183105469
2023-02-13,82.33000183105469,80.18000030517578,81.1500015258789
2023-02-14,81.92500305175781,80.25,80.61000061035156
2023-02-15,82.80000305175781,79.54000091552734,81.86000061035156
2023-02-16,81.0199966430664,78.61000061035156,78.66999816894531
2023-02-17,78.91000366210938,76.81999969482422,78.86000061035156
2023-02-21,77.1449966430664,76.06500244140625,76.70999908447266
2023-02-22,77.66000366210938,76.0,76.0
2023-02-23,77.69999694824219,76.04000091552734,77.69999694824219
2023-02-24,77.37000274658203,74.97000122070312,75.0
2023-02-27,76.6500015258789,75.77999877929688,76.27999877929688
2023-02-28,76.8499984741211,75.5999984741211,75.73999786376953
2023-03-01,76.19999694824219,75.25,75.68000030517578
2023-03-02,75.72000122070312,74.45999908447266,75.5
2023-03-03,76.62999725341797,75.36000061035156,75.55000305175781
2023-03-06,76.9000015258789,75.73999786376953,76.16000366210938
2023-03-07,77.01499938964844,74.92500305175781,75.87999725341797
2023-03-08,76.19499969482422,75.29000091552734,75.79000091552734
2023-03-09,76.38999938964844,74.95999908447266,76.0199966430664
2023-03-10,74.75,72.1449966430664,74.33999633789062
2023-03-13,73.02999877929688,71.36000061035156,71.62999725341797
2023-03-14,73.4800033569336,71.9800033569336,72.66000366210938
2023-03-15,72.30500030517578,71.06999969482422,71.62999725341797
2023-03-16,73.36000061035156,72.0,72.36000061035156
2023-03-17,73.91000366210938,72.30999755859375,72.70999908447266
2023-03-20,74.4000015258789,72.2699966430664,72.87999725341797
2023-03-21,74.5,72.81999969482422,73.30999755859375
2023-03-22,75.13999938964844,73.38999938964844,74.4800033569336
2023-03-23,74.71499633789062,73.18000030517578,74.2699966430664
2023-03-24,74.56999969482422,73.1500015258789,73.79000091552734
2023-03-27,75.31999969482422,74.31999969482422,74.95999908447266
2023-03-28,75.30999755859375,74.19999694824219,74.47000122070312
2023-03-29,76.08000183105469,74.9800033569336,75.37000274658203
2023-03-30,76.51000213623047,75.1449966430664,75.47000122070312
2023-03-31,77.75,76.52999877929688,76.70999908447266
2023-04-03,77.74500274658203,76.70999908447266,77.12000274658203
2023-04-04,77.79000091552734,76.86000061035156,77.66999816894531
2023-04-05,77.80999755859375,76.28500366210938,77.26000213623047
2023-04-06,76.52999877929688,75.61000061035156,76.27999877929688
2023-04-10,76.38999938964844,75.55999755859375,75.7300033569336
2023-04-11,77.2750015258789,75.96499633789062,76.62000274658203
2023-04-12,77.77999877929688,76.05999755859375,77.30999755859375
2023-04-13,77.56500244140625,76.19000244140625,76.29000091552734
2023-04-14,77.65499877929688,76.55000305175781,76.70999908447266
2023-04-17,77.20999908447266,76.0999984741211,76.94000244140625
2023-04-18,78.04000091552734,76.93000030517578,77.8499984741211
2023-04-19,77.0,75.5999984741211,76.83000183105469
2023-04-20,77.12000274658203,75.26000213623047,75.61000061035156
2023-04-21,77.51000213623047,76.83300018310547,76.98999786376953

Indicator data:
date,Upper,Middle,Lower,open
2023-02-27,85.31999969482422,80.14500045776367,74.97000122070312,76.27999877929688
2023-02-28,85.31999969482422,80.14500045776367,74.97000122070312,75.73999786376953
2023-03-01,85.31999969482422,80.14500045776367,74.97000122070312,75.68000030517578
2023-03-02,85.31999969482422,79.88999938964844,74.45999908447266,75.5
2023-03-03,83.93000030517578,79.19499969482422,74.45999908447266,75.55000305175781
2023-03-06,83.66000366210938,79.06000137329102,74.45999908447266,76.16000366210938
2023-03-07,83.66000366210938,79.06000137329102,74.45999908447266,75.87999725341797
2023-03-08,83.43000030517578,78.94499969482422,74.45999908447266,75.79000091552734
2023-03-09,83.43000030517578,78.94499969482422,74.45999908447266,76.0199966430664
2023-03-10,82.80000305175781,77.47249984741211,72.1449966430664,74.33999633789062
2023-03-13,82.80000305175781,77.08000183105469,71.36000061035156,71.62999725341797
2023-03-14,82.80000305175781,77.08000183105469,71.36000061035156,72.66000366210938
2023-03-15,82.80000305175781,76.93500137329102,71.06999969482422,71.62999725341797
2023-03-16,81.0199966430664,76.04499816894531,71.06999969482422,72.36000061035156
2023-03-17,78.91000366210938,74.9900016784668,71.06999969482422,72.70999908447266
2023-03-20,77.69999694824219,74.3849983215332,71.06999969482422,72.87999725341797
2023-03-21,77.69999694824219,74.3849983215332,71.06999969482422,73.30999755859375
2023-03-22,77.69999694824219,74.3849983215332,71.06999969482422,74.4800033569336
2023-03-23,77.37000274658203,74.22000122070312,71.06999969482422,74.2699966430664
2023-03-24,77.01499938964844,74.04249954223633,71.06999969482422,73.79000091552734
2023-03-27,77.01499938964844,74.04249954223633,71.06999969482422,74.95999908447266
2023-03-28,77.01499938964844,74.04249954223633,71.06999969482422,74.47000122070312
2023-03-29,77.01499938964844,74.04249954223633,71.06999969482422,75.37000274658203
2023-03-30,77.01499938964844,74.04249954223633,71.06999969482422,75.47000122070312
2023-03-31,77.75,74.40999984741211,71.06999969482422,76.70999908447266
2023-04-03,77.75,74.40999984741211,71.06999969482422,77.12000274658203
2023-04-04,77.79000091552734,74.43000030517578,71.06999969482422,77.66999816894531
2023-04-05,77.80999755859375,74.43999862670898,71.06999969482422,77.26000213623047
2023-04-06,77.80999755859375,74.43999862670898,71.06999969482422,76.27999877929688
2023-04-10,77.80999755859375,74.43999862670898,71.06999969482422,75.7300033569336
2023-04-11,77.80999755859375,74.43999862670898,71.06999969482422,76.62000274658203
2023-04-12,77.80999755859375,74.43999862670898,71.06999969482422,77.30999755859375
2023-04-13,77.80999755859375,74.90499877929688,72.0,76.29000091552734
2023-04-14,77.80999755859375,75.03999710083008,72.2699966430664,76.70999908447266
2023-04-17,77.80999755859375,75.03999710083008,72.2699966430664,76.94000244140625
2023-04-18,78.04000091552734,75.43000030517578,72.81999969482422,77.8499984741211
2023-04-19,78.04000091552734,75.59500122070312,73.1500015258789,76.83000183105469
2023-04-20,78.04000091552734,75.59500122070312,73.1500015258789,75.61000061035156
2023-04-21,78.04000091552734,75.59500122070312,73.1500015258789,76.98999786376953

Answer: 53.8462