-33.86% is the change from 957 to 633
Calculation steps:
[( 633 - 957 ) ÷ 957] x 100 = -33.86%
Formula
Percentage change = [(633 - 957) / 957] x 100
Subtract the new number by the original number
633 - 957 = -324
-324 ÷ 957 = -0.3385579937304075
-0.3385579937304075 x 100 = -33.86%