Question: Calculate the Percentage Price Oscillator value for PPL Corporation on April 26, 2023. (Standard parameters: fast 12, slow 26; Require 104 data points to warm up; EMA uses the first data point as the initial value) 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: PPO = (EMA_{n_{fast}}(P) - EMA_{n_{slow}}(P)) / EMA_{n_{slow}}(P) * 100
Data:
date,close
2022-11-23,29.11000061035156
2022-11-25,29.229999542236328
2022-11-28,29.100000381469727
2022-11-29,29.020000457763672
2022-11-30,29.520000457763672
2022-12-01,29.290000915527344
2022-12-02,29.18000030517578
2022-12-05,29.07999992370605
2022-12-06,29.299999237060547
2022-12-07,28.979999542236328
2022-12-08,29.059999465942383
2022-12-09,28.950000762939453
2022-12-12,29.450000762939453
2022-12-13,29.34000015258789
2022-12-14,29.420000076293945
2022-12-15,29.36000061035156
2022-12-16,29.1299991607666
2022-12-19,29.11000061035156
2022-12-20,29.15999984741211
2022-12-21,29.399999618530277
2022-12-22,29.18000030517578
2022-12-23,29.540000915527344
2022-12-27,29.690000534057617
2022-12-28,29.440000534057617
2022-12-29,29.65999984741211
2022-12-30,29.21999931335449
2023-01-03,29.200000762939453
2023-01-04,29.93000030517578
2023-01-05,29.239999771118164
2023-01-06,29.959999084472656
2023-01-09,30.170000076293945
2023-01-10,30.170000076293945
2023-01-11,30.799999237060547
2023-01-12,30.71999931335449
2023-01-13,30.61000061035156
2023-01-17,30.59000015258789
2023-01-18,29.709999084472656
2023-01-19,29.149999618530277
2023-01-20,29.31999969482422
2023-01-23,29.31999969482422
2023-01-24,29.489999771118164
2023-01-25,29.5
2023-01-26,29.68000030517578
2023-01-27,29.6299991607666
2023-01-30,29.450000762939453
2023-01-31,29.600000381469727
2023-02-01,29.61000061035156
2023-02-02,29.38999938964844
2023-02-03,28.65999984741211
2023-02-06,28.84000015258789
2023-02-07,28.75
2023-02-08,28.3700008392334
2023-02-09,28.059999465942383
2023-02-10,28.65999984741211
2023-02-13,28.809999465942383
2023-02-14,28.540000915527344
2023-02-15,28.68000030517578
2023-02-16,28.450000762939453
2023-02-17,28.809999465942383
2023-02-21,27.81999969482422
2023-02-22,27.709999084472656
2023-02-23,27.86000061035156
2023-02-24,27.690000534057617
2023-02-27,27.549999237060547
2023-02-28,27.06999969482422
2023-03-01,26.68000030517578
2023-03-02,27.1200008392334
2023-03-03,27.38999938964844
2023-03-06,27.479999542236328
2023-03-07,26.8799991607666
2023-03-08,27.0
2023-03-09,26.57999992370605
2023-03-10,26.25
2023-03-13,26.76000022888184
2023-03-14,26.989999771118164
2023-03-15,27.239999771118164
2023-03-16,27.200000762939453
2023-03-17,26.82999992370605
2023-03-20,27.270000457763672
2023-03-21,26.780000686645508
2023-03-22,26.26000022888184
2023-03-23,25.90999984741211
2023-03-24,26.780000686645508
2023-03-27,26.959999084472656
2023-03-28,27.09000015258789
2023-03-29,27.530000686645508
2023-03-30,27.549999237060547
2023-03-31,27.790000915527344
2023-04-03,27.57999992370605
2023-04-04,27.549999237060547
2023-04-05,28.3799991607666
2023-04-06,28.549999237060547
2023-04-10,28.63999938964844
2023-04-11,28.82999992370605
2023-04-12,28.65999984741211
2023-04-13,28.76000022888184
2023-04-14,28.56999969482422
2023-04-17,28.71999931335449
2023-04-18,28.489999771118164
2023-04-19,28.700000762939453
2023-04-20,28.600000381469727
2023-04-21,28.690000534057617
2023-04-24,28.670000076293945
2023-04-25,28.700000762939453
2023-04-26,28.32999992370605

Indicator data:
Answer: 1.0173