What was the change in the Increase in goodwill related to business combinations between 2019 and 2020?
{"Balance, beginning of the year": {"January 31, 2020": 7418, "February 1, 2019": 6660}, "Increase in goodwill related to business combinations": {"January 31, 2020": 1911, "February 1, 2019": 784}, "Other adjustment": {"January 31, 2020": "\u2014", "February 1, 2019": -26}, "Balance, end of the year": {"January 31, 2020": 9329, "February 1, 2019": 7418}}
goodwill_2020 = df["Increase in goodwill related to business combinations"]["January 31, 2020"]
goodwill_2019 = df["Increase in goodwill related to business combinations"]["February 1, 2019"]
answer = goodwill_2020 - goodwill_2019