What was the percentage change in total other non-current assets from 2018 to 2019?
{"Various guarantees": {"2018": 451, "2019": 388}, "Other long-term assets": {"2018": 2092, "2019": 1613}, "Cash collaterals on swaps": {"2018": "\u2014", "2019": 22220}, "Total": {"2018": 2543, "2019": 24221}}
total_2019 = df["Total"]["2019"]
total_2018 = df["Total"]["2018"]
answer = ( total_2019 - total_2018 ) / total_2018 * 100.0