-30.95% is the change from 950 to 656
Calculation steps:
[( 656 - 950 ) ÷ 950] x 100 = -30.95%
Formula
Percentage change = [(656 - 950) / 950] x 100
Subtract the new number by the original number
656 - 950 = -294
-294 ÷ 950 = -0.3094736842105263
-0.3094736842105263 x 100 = -30.95%