Question: How many death cross occurred between the 60-day and 10-day Weighted Moving Average lines for West Pharmaceutical Services from September 28, 2025 to November 20, 2025? (Weights are 1, 2, ..., n) 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: WMA_n = \sum_{i=0}^{n-1} (n-i) * P_{t-i} / \sum_{j=1}^{n} j
Data:
date,close
2025-07-07,221.47999572753903
2025-07-08,220.47999572753903
2025-07-09,226.17999267578125
2025-07-10,229.22999572753903
2025-07-11,227.17999267578125
2025-07-14,224.4900054931641
2025-07-15,221.0500030517578
2025-07-16,224.3800048828125
2025-07-17,221.58999633789065
2025-07-18,210.88999938964844
2025-07-21,210.0800018310547
2025-07-22,218.8999938964844
2025-07-23,227.30999755859372
2025-07-24,279.1000061035156
2025-07-25,263.510009765625
2025-07-28,257.760009765625
2025-07-29,252.94000244140625
2025-07-30,249.2100067138672
2025-07-31,239.25999450683597
2025-08-01,239.25999450683597
2025-08-04,238.38999938964844
2025-08-05,238.8600006103516
2025-08-06,237.27999877929688
2025-08-07,240.5399932861328
2025-08-08,240.97999572753903
2025-08-11,240.3300018310547
2025-08-12,239.8999938964844
2025-08-13,246.22000122070312
2025-08-14,246.1999969482422
2025-08-15,246.1999969482422
2025-08-18,243.08999633789065
2025-08-19,246.9900054931641
2025-08-20,246.3800048828125
2025-08-21,242.6300048828125
2025-08-22,247.8500061035156
2025-08-25,247.2100067138672
2025-08-26,244.5
2025-08-27,245.97000122070312
2025-08-28,245.4499969482422
2025-08-29,246.9499969482422
2025-09-02,243.7400054931641
2025-09-03,248.9499969482422
2025-09-04,247.5399932861328
2025-09-05,250.72999572753903
2025-09-08,253.1499938964844
2025-09-09,252.0399932861328
2025-09-10,255.22000122070312
2025-09-11,263.739990234375
2025-09-12,253.5
2025-09-15,257.5299987792969
2025-09-16,258.3500061035156
2025-09-17,256.6400146484375
2025-09-18,254.97999572753903
2025-09-19,254.8500061035156
2025-09-22,252.22000122070312
2025-09-23,250.8000030517578
2025-09-24,259.94000244140625
2025-09-25,254.47999572753903
2025-09-26,261.5199890136719
2025-09-29,260.32000732421875
2025-09-30,262.3299865722656
2025-10-01,271.4200134277344
2025-10-02,273.1600036621094
2025-10-03,272.5599975585937
2025-10-06,268.07000732421875
2025-10-07,265.9700012207031
2025-10-08,267.92999267578125
2025-10-09,263.5799865722656
2025-10-10,261.7699890136719
2025-10-13,262.4700012207031
2025-10-14,261.1700134277344
2025-10-15,262.95001220703125
2025-10-16,267.19000244140625
2025-10-17,270.6000061035156
2025-10-20,274.8999938964844
2025-10-21,279.3900146484375
2025-10-22,277.0
2025-10-23,307.25
2025-10-24,297.4700012207031
2025-10-27,287.2200012207031
2025-10-28,283.489990234375
2025-10-29,284.8599853515625
2025-10-30,278.5400085449219
2025-10-31,282.07000732421875
2025-11-03,279.7799987792969
2025-11-04,286.94000244140625
2025-11-05,283.5400085449219
2025-11-06,275.3399963378906
2025-11-07,271.0400085449219
2025-11-10,275.4700012207031
2025-11-11,277.4100036621094
2025-11-12,273.8500061035156
2025-11-13,266.6600036621094
2025-11-14,261.3599853515625
2025-11-17,262.4100036621094
2025-11-18,260.1400146484375
2025-11-19,257.8999938964844
2025-11-20,257.7699890136719

Indicator data:
date,60-day,10-day
2025-09-29,249.44418577600698,256.9849096124822
2025-09-30,250.05257878538038,258.0612704190341
2025-10-01,250.9366830627775,260.7180000998757
2025-10-02,251.85000012507203,263.42236439098014
2025-10-03,252.71797271895278,265.6870910644531
2025-10-06,253.41505492163486,266.8134560324929
2025-10-07,254.02094019488558,267.26981977982956
2025-10-08,254.6684208187249,267.8067274613814
2025-10-09,255.14766081096045,267.40745239257814
2025-10-10,255.54613586592544,266.51363247958096
2025-10-13,255.9456058606424,265.74254205877133
2025-10-14,256.2742675114199,264.69599942294036
2025-10-15,256.6333717387882,263.9941833496094
2025-10-16,257.1074209911576,264.2172746138139
2025-10-17,257.67148128988964,265.16891202059657
2025-10-20,258.3811696036917,266.93800159801134
2025-10-21,259.2318476775956,269.399277010831
2025-10-22,259.9923449406858,271.1820040616122
2025-10-23,261.73149794281505,278.2998218883168
2025-10-24,263.11827940393664,282.84545787464486
2025-10-27,264.1371865444496,284.8783663662997
2025-10-28,265.00759058884586,285.78309104225855
2025-10-29,265.89826770219645,286.5310879794034
2025-10-30,266.5565958575473,285.73163507634945
2025-10-31,267.30811522436926,285.36763638583096
2025-11-03,267.96185834707455,284.37872702858664
2025-11-04,268.8291535007498,284.6029091574929
2025-11-05,269.5595034990154,284.0716380726207
2025-11-06,269.99715363549404,281.9305464311079
2025-11-07,270.277908000008,279.58782071200284
2025-11-10,270.6903342491942,278.531093528054
2025-11-11,271.15037259794974,278.0407304243608
2025-11-12,271.47493561291304,277.01364024769174
2025-11-13,271.54908324695026,274.87945834073156
2025-11-14,271.4383778222923,271.99763682972304
2025-11-17,271.3518642654836,269.68327359286224
2025-11-18,271.18296855655524,267.2720031738281
2025-11-19,270.93356396617787,264.94072875976565
2025-11-20,270.67257451958994,263.0519991787997

Answer: 1.0