What was the change in current amount due to related parties between 2019 and 2020?
{"Due from related parties, current": {"January 31, 2020": 1618, "February 1, 2019": 1248}, "Due to related parties, current(1)": {"January 31, 2020": 161, "February 1, 2019": 158}, "Due from related parties, net, current": {"January 31, 2020": 1457, "February 1, 2019": 1090}}
current_2020 = df["Due to related parties, current(1)"]["January 31, 2020"]
current_2019 = df["Due to related parties, current(1)"]["February 1, 2019"]
answer = current_2020 - current_2019