-54.69% is the change from 618 to 280
Calculation steps:
[( 280 - 618 ) ÷ 618] x 100 = -54.69%
Formula
Percentage change = [(280 - 618) / 618] x 100
Subtract the new number by the original number
280 - 618 = -338
-338 ÷ 618 = -0.5469255663430421
-0.5469255663430421 x 100 = -54.69%