-42.81% is the change from 278 to 159
Calculation steps:
[( 159 - 278 ) ÷ 278] x 100 = -42.81%
Formula
Percentage change = [(159 - 278) / 278] x 100
Subtract the new number by the original number
159 - 278 = -119
-119 ÷ 278 = -0.42805755395683454
-0.42805755395683454 x 100 = -42.81%