What was the percentage change in restricted cash in relation to the Hilli between 2018 and 2019?
{"Restricted cash relating to the total return equity swap (1)": {"2019": 55573, "2018": 82863}, "Restricted cash in relation to the Hilli (2)": {"2019": 75968, "2018": 174597}, "Restricted cash and short-term deposits held by lessor VIEs (3)": {"2019": 34947, "2018": 176428}, "Restricted cash relating to the $1.125 billion debt facility (4)": {"2019": 10975, "2018": 17657}, "Collateral on the Margin Loan facility (5)": {"2019": 10000, "2018": 33413}, "Restricted cash relating to office lease": {"2019": 826, "2018": 777}, "Bank guarantee": {"2019": "\u2014", "2018": 691}, "Total restricted cash and short-term deposits": {"2019": 188289, "2018": 486426}, "Less: Amounts included in current restricted cash and short-term deposits": {"2019": -111545, "2018": -332033}}
restricted_cash_2019 = df["Restricted cash in relation to the Hilli (2)"]["2019"]
restricted_cash_2018 = df["Restricted cash in relation to the Hilli (2)"]["2018"]
answer = (restricted_cash_2019 - restricted_cash_2018) / restricted_cash_2018 * 100.0