-64.4% is the change from 618 to 220
Calculation steps:
[( 220 - 618 ) ÷ 618] x 100 = -64.4%
Formula
Percentage change = [(220 - 618) / 618] x 100
Subtract the new number by the original number
220 - 618 = -398
-398 ÷ 618 = -0.6440129449838188
-0.6440129449838188 x 100 = -64.4%