Question: Calculate the MACD Signal value for Universal Health Services on September 25, 2025. (Standard parameters: fast 12, slow 26, signal 9; 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: Signal Line = EMA_{n_{signal}}(MACD Line); MACD Line = EMA_{n_{fast}}(P) - EMA_{n_{slow}}(P)
Data:
date,close
2025-04-28,172.91000366210938
2025-04-29,171.8800048828125
2025-04-30,177.07000732421875
2025-05-01,174.6300048828125
2025-05-02,178.74000549316406
2025-05-05,178.19000244140625
2025-05-06,184.16000366210935
2025-05-07,186.58999633789065
2025-05-08,183.7700042724609
2025-05-09,181.77999877929688
2025-05-12,191.5500030517578
2025-05-13,192.1699981689453
2025-05-14,187.8300018310547
2025-05-15,195.8800048828125
2025-05-16,197.94000244140625
2025-05-19,196.82000732421875
2025-05-20,195.72999572753903
2025-05-21,190.1499938964844
2025-05-22,186.6499938964844
2025-05-23,186.2100067138672
2025-05-27,192.4199981689453
2025-05-28,190.38999938964844
2025-05-29,191.0500030517578
2025-05-30,190.3500061035156
2025-06-02,187.3800048828125
2025-06-03,188.80999755859372
2025-06-04,188.6499938964844
2025-06-05,189.08999633789065
2025-06-06,189.38999938964844
2025-06-09,177.77000427246094
2025-06-10,172.6699981689453
2025-06-11,172.2899932861328
2025-06-12,173.66000366210938
2025-06-13,171.07000732421875
2025-06-16,170.36000061035156
2025-06-17,171.75999450683594
2025-06-18,171.24000549316406
2025-06-20,171.6999969482422
2025-06-23,173.52000427246094
2025-06-24,175.1999969482422
2025-06-25,175.69000244140625
2025-06-26,177.42999267578125
2025-06-27,178.0800018310547
2025-06-30,181.1499938964844
2025-07-01,188.94000244140625
2025-07-02,184.47000122070312
2025-07-03,184.52999877929688
2025-07-07,181.5200042724609
2025-07-08,182.25
2025-07-09,182.55999755859372
2025-07-10,184.0500030517578
2025-07-11,182.5200042724609
2025-07-14,183.4499969482422
2025-07-15,176.94000244140625
2025-07-16,170.27999877929688
2025-07-17,170.82000732421875
2025-07-18,168.94000244140625
2025-07-21,168.75
2025-07-22,162.67999267578125
2025-07-23,164.82000732421875
2025-07-24,155.4600067138672
2025-07-25,155.60000610351562
2025-07-28,154.9499969482422
2025-07-29,162.82000732421875
2025-07-30,165.44000244140625
2025-07-31,166.4499969482422
2025-08-01,162.97999572753906
2025-08-04,164.67999267578125
2025-08-05,164.6999969482422
2025-08-06,163.47999572753906
2025-08-07,169.02000427246094
2025-08-08,172.3000030517578
2025-08-11,171.66000366210938
2025-08-12,175.2100067138672
2025-08-13,178.50999450683594
2025-08-14,178.74000549316406
2025-08-15,178.47000122070312
2025-08-18,177.61000061035156
2025-08-19,182.55999755859372
2025-08-20,184.6999969482422
2025-08-21,183.9499969482422
2025-08-22,185.5800018310547
2025-08-25,183.8800048828125
2025-08-26,181.4499969482422
2025-08-27,182.41000366210935
2025-08-28,181.22000122070312
2025-08-29,181.5800018310547
2025-09-02,181.50999450683597
2025-09-03,181.57000732421875
2025-09-04,185.67999267578125
2025-09-05,190.1199951171875
2025-09-08,185.75999450683597
2025-09-09,186.42999267578125
2025-09-10,186.05999755859372
2025-09-11,190.7899932861328
2025-09-12,191.72000122070312
2025-09-15,189.5800018310547
2025-09-16,186.25999450683597
2025-09-17,187.38999938964844
2025-09-18,188.1100006103516
2025-09-19,188.63999938964844
2025-09-22,194.16000366210935
2025-09-23,194.72000122070312
2025-09-24,199.6999969482422
2025-09-25,197.6199951171875

Indicator data:
Answer: 3.7861