What was the percentage change in the Interest expense and finance cost between 2018 and 2019?
{"Interest expense": {"For the Year Ended December 31, 2019": 125496, "For the Year Ended December 31, 2018": 129941, "For the Year Ended December 31, 2017": 115099}, "Amortization and write-off of deferred financing costs": {"For the Year Ended December 31, 2019": 7746, "For the Year Ended December 31, 2018": 7866, "For the Year Ended December 31, 2017": 6391}, "Other": {"For the Year Ended December 31, 2019": 237, "For the Year Ended December 31, 2018": 109, "For the Year Ended December 31, 2017": 121}, "Interest expense and finance cost": {"For the Year Ended December 31, 2019": 133479, "For the Year Ended December 31, 2018": 137916, "For the Year Ended December 31, 2017": 121611}}
interest_expense_and_finance_cost_2019 = df["Interest expense and finance cost"]["For the Year Ended December 31, 2019"]
interest_expense_and_finance_cost_2018 = df["Interest expense and finance cost"]["For the Year Ended December 31, 2018"]
answer = ( interest_expense_and_finance_cost_2019 - interest_expense_and_finance_cost_2018 ) / interest_expense_and_finance_cost_2018 * 100.0