What is the percentage change in the Equity-based compensation expense from 2018 to 2019?
{"": {"June 30, 2019": "", "June 24, 2018": "(in thousands)", "June 25, 2017": ""}, "Equity-based compensation expense": {"June 30, 2019": 187234, "June 24, 2018": 172216, "June 25, 2017": 149975}, "Income tax benefit recognized related to equity-based compensation": {"June 30, 2019": 47396, "June 24, 2018": 87505, "June 25, 2017": 38381}, "Income tax benefit realized from the exercise and vesting of options and RSUs": {"June 30, 2019": 49242, "June 24, 2018": 90297, "June 25, 2017": 92749}}
equity_2019 = df["Equity-based compensation expense"]["June 30, 2019"]
equity_2018 = df["Equity-based compensation expense"]["June 24, 2018"]
answer = (equity_2019 - equity_2018) / equity_2018 * 100.0