What is the percentage change in the total accrued expenses from 2018 to 2019?
{"Payroll and incentive compensation": {"2019": 3009, "2018": 1937}, "Current portion of operating lease liabilities     ": {"2019": 285, "2018": "-"}, "Real estate taxes": {"2019": 398, "2018": 398}, "Other": {"2019": 395, "2018": 442}, "Total accrued expenses": {"2019": 4087, "2018": 2777}}
total_accrued_expenses_2019 = df["Total accrued expenses"]["2019"]
total_accrued_expenses_2018 = df["Total accrued expenses"]["2018"]
answer = ( total_accrued_expenses_2019 - total_accrued_expenses_2018 ) / total_accrued_expenses_2018 * 100.0