What is the increase/ (decrease) in Employees’ compensation – Cash from 2018 to 2019?
{"": {"2017": "NT$(In Thousands)", "2018": "NT$(In Thousands)", "2019": "NT$(In Thousands)"}, "Employees compensation  Cash": {"2017": 1032324, "2018": 1400835, "2019": 1132952}, "Directors compensation": {"2017": 11452, "2018": 7624, "2019": 10259}}
employees_compensation_cash_2019 = df["Employees compensation  Cash"]["2019"]
employees_compensation_cash_2018 = df["Employees compensation  Cash"]["2018"]
answer = employees_compensation_cash_2019 - employees_compensation_cash_2018