-86.52% is the change from 957 to 129
Calculation steps:
[( 129 - 957 ) ÷ 957] x 100 = -86.52%
Formula
Percentage change = [(129 - 957) / 957] x 100
Subtract the new number by the original number
129 - 957 = -828
-828 ÷ 957 = -0.8652037617554859
-0.8652037617554859 x 100 = -86.52%