Question: For the 30-day Exponential Moving Average close price, what is the value for Block on December 03, 2021? (Unit: USD) (Smoothing factor alpha = 2 / (n + 1); Require 4n data points to warm up; Use 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: EMA_t = \alpha * P_t + (1 - \alpha) * EMA_{t-1}, \quad \alpha = 2 / (n + 1)
Data:
date,close
2021-06-15,227.75
2021-06-16,225.1100006103516
2021-06-17,236.1300048828125
2021-06-18,237.0500030517578
2021-06-21,233.88999938964844
2021-06-22,235.97000122070312
2021-06-23,238.6999969482422
2021-06-24,244.1499938964844
2021-06-25,239.94000244140625
2021-06-28,246.6000061035156
2021-06-29,248.8699951171875
2021-06-30,243.8000030517578
2021-07-01,241.8500061035156
2021-07-02,241.0800018310547
2021-07-06,246.6999969482422
2021-07-07,244.63999938964844
2021-07-08,235.8999938964844
2021-07-09,241.88999938964844
2021-07-12,243.3500061035156
2021-07-13,241.42999267578125
2021-07-14,239.0
2021-07-15,235.16000366210935
2021-07-16,237.5200042724609
2021-07-19,233.69000244140625
2021-07-20,246.47000122070312
2021-07-21,257.25
2021-07-22,260.5899963378906
2021-07-23,264.0
2021-07-26,261.989990234375
2021-07-27,251.72999572753903
2021-07-28,258.6099853515625
2021-07-29,255.27999877929688
2021-07-30,247.25999450683597
2021-08-02,272.3800048828125
2021-08-03,269.489990234375
2021-08-04,266.4200134277344
2021-08-05,281.8099975585937
2021-08-06,275.1000061035156
2021-08-09,279.7300109863281
2021-08-10,273.0799865722656
2021-08-11,271.0899963378906
2021-08-12,268.5899963378906
2021-08-13,267.8800048828125
2021-08-16,263.3999938964844
2021-08-17,260.8800048828125
2021-08-18,259.6600036621094
2021-08-19,257.3500061035156
2021-08-20,263.04998779296875
2021-08-23,270.44000244140625
2021-08-24,270.1700134277344
2021-08-25,267.57000732421875
2021-08-26,262.1300048828125
2021-08-27,268.010009765625
2021-08-30,271.9200134277344
2021-08-31,268.07000732421875
2021-09-01,268.25
2021-09-02,265.94000244140625
2021-09-03,269.739990234375
2021-09-07,265.8299865722656
2021-09-08,254.72000122070312
2021-09-09,251.5399932861328
2021-09-10,247.8999938964844
2021-09-13,246.67999267578125
2021-09-14,247.0500030517578
2021-09-15,248.8000030517578
2021-09-16,255.08999633789065
2021-09-17,255.7899932861328
2021-09-20,250.22999572753903
2021-09-21,251.3000030517578
2021-09-22,261.07000732421875
2021-09-23,266.7200012207031
2021-09-24,262.5
2021-09-27,258.1099853515625
2021-09-28,242.6999969482422
2021-09-29,236.0399932861328
2021-09-30,239.83999633789065
2021-10-01,239.2899932861328
2021-10-04,226.25
2021-10-05,235.97999572753903
2021-10-06,239.1199951171875
2021-10-07,249.16000366210935
2021-10-08,238.4900054931641
2021-10-11,232.3300018310547
2021-10-12,237.41000366210935
2021-10-13,242.72999572753903
2021-10-14,247.41000366210935
2021-10-15,249.0
2021-10-18,252.1999969482422
2021-10-19,254.41000366210935
2021-10-20,255.3500061035156
2021-10-21,265.0799865722656
2021-10-22,253.05999755859372
2021-10-25,262.0
2021-10-26,263.3900146484375
2021-10-27,253.0200042724609
2021-10-28,261.3299865722656
2021-10-29,254.5
2021-11-01,255.0399932861328
2021-11-02,249.00999450683597
2021-11-03,252.47999572753903
2021-11-04,247.4600067138672
2021-11-05,237.3800048828125
2021-11-08,236.7700042724609
2021-11-09,230.77999877929688
2021-11-10,227.2100067138672
2021-11-11,226.50999450683597
2021-11-12,227.3000030517578
2021-11-15,233.0200042724609
2021-11-16,238.47000122070312
2021-11-17,231.8500061035156
2021-11-18,230.3500061035156
2021-11-19,225.13999938964844
2021-11-22,211.30999755859372
2021-11-23,210.5500030517578
2021-11-24,215.6499938964844
2021-11-26,212.0800018310547
2021-11-29,212.8699951171875
2021-11-30,208.3300018310547
2021-12-01,194.5
2021-12-02,192.1499938964844
2021-12-03,181.30999755859372

Indicator data:
Answer: 223.7432