-8.99% is the change from 957 to 871
Calculation steps:
[( 871 - 957 ) ÷ 957] x 100 = -8.99%
Formula
Percentage change = [(871 - 957) / 957] x 100
Subtract the new number by the original number
871 - 957 = -86
-86 ÷ 957 = -0.08986415882967608
-0.08986415882967608 x 100 = -8.99%