-55.02% is the change from 618 to 278
Calculation steps:
[( 278 - 618 ) ÷ 618] x 100 = -55.02%
Formula
Percentage change = [(278 - 618) / 618] x 100
Subtract the new number by the original number
278 - 618 = -340
-340 ÷ 618 = -0.5501618122977346
-0.5501618122977346 x 100 = -55.02%