-30.84% is the change from 950 to 657
Calculation steps:
[( 657 - 950 ) ÷ 950] x 100 = -30.84%
Formula
Percentage change = [(657 - 950) / 950] x 100
Subtract the new number by the original number
657 - 950 = -293
-293 ÷ 950 = -0.30842105263157893
-0.30842105263157893 x 100 = -30.84%