-28.31% is the change from 915 to 656
Calculation steps:
[( 656 - 915 ) ÷ 915] x 100 = -28.31%
Formula
Percentage change = [(656 - 915) / 915] x 100
Subtract the new number by the original number
656 - 915 = -259
-259 ÷ 915 = -0.2830601092896175
-0.2830601092896175 x 100 = -28.31%