-55.96% is the change from 638 to 281
Calculation steps:
[( 281 - 638 ) ÷ 638] x 100 = -55.96%
Formula
Percentage change = [(281 - 638) / 638] x 100
Subtract the new number by the original number
281 - 638 = -357
-357 ÷ 638 = -0.5595611285266457
-0.5595611285266457 x 100 = -55.96%