What was the percentage change total amount of assets across all segments between 2018 and 2019?
{"Total assets: -- Solid Capacitors": {"2019": 794402, "2018": 704851}, "Total assets: -- Film and Electrolytic (1)": {"2019": 219711, "2018": 240968}, "Total assets: -- MSA": {"2019": 234419, "2018": 254193}, "Total assets: -- Corporate": {"2019": 69563, "2018": 22911}, "Total assets: -- ": {"2019": 1318095, "2018": 1222923}}
total_assets_2019 = df["Total assets: -- "]["2019"]
total_assets_2018 = df["Total assets: -- "]["2018"]
answer = ( total_assets_2019 - total_assets_2018 ) / total_assets_2018 * 100.0