What was the percentage change in the amount Thereof committee remuneration in 2019 from 2018?
{"Total compensation": {"2019": 3770, "2018": 3702, "2017": 3663}, "Thereof fixed compensation": {"2019": 3218, "2018": 3162, "2017": 3135}, "Thereof committee remuneration": {"2019": 553, "2018": 540, "2017": 528}}
remuneration_2019 = df["Thereof committee remuneration"]["2019"]
remuneration_2018 = df["Thereof committee remuneration"]["2018"]
answer = ( remuneration_2019 - remuneration_2018 ) / remuneration_2018 * 100.0