What was the percentage change in other costs between 2018 and 2019?
{"Employee severance and benefit costs": {"2019": 16.0, "2018": 16.3, "2017(2)": 56.8}, "Lease costs": {"2019": "\u2014", "2018": 1.6, "2017(2)": 4.0}, "Asset write-off costs": {"2019": -3.6, "2018": 16.2, "2017(2)": 94.3}, "Other costs": {"2019": 13.5, "2018": 2.8, "2017(2)": 5.3}, "Total restructuring and related charges (1)": {"2019": 25.9, "2018": 36.9, "2017(2)": 160.4}}
other_costs_2019 = df["Other costs"]["2019"]
other_costs_2018 = df["Other costs"]["2018"]
answer = ( other_costs_2019 - other_costs_2018 ) / other_costs_2018 * 100.0