-13.38% is the change from 957 to 829
Calculation steps:
[( 829 - 957 ) ÷ 957] x 100 = -13.38%
Formula
Percentage change = [(829 - 957) / 957] x 100
Subtract the new number by the original number
829 - 957 = -128
-128 ÷ 957 = -0.13375130616509928
-0.13375130616509928 x 100 = -13.38%