-8.32% is the change from 950 to 871
Calculation steps:
[( 871 - 950 ) ÷ 950] x 100 = -8.32%
Formula
Percentage change = [(871 - 950) / 950] x 100
Subtract the new number by the original number
871 - 950 = -79
-79 ÷ 950 = -0.08315789473684211
-0.08315789473684211 x 100 = -8.32%