-91% is the change from 956 to 86
Calculation steps:
[( 86 - 956 ) ÷ 956] x 100 = -91%
Formula
Percentage change = [(86 - 956) / 956] x 100
Subtract the new number by the original number
86 - 956 = -870
-870 ÷ 956 = -0.9100418410041841
-0.9100418410041841 x 100 = -91%