-91.12% is the change from 957 to 85
Calculation steps:
[( 85 - 957 ) ÷ 957] x 100 = -91.12%
Formula
Percentage change = [(85 - 957) / 957] x 100
Subtract the new number by the original number
85 - 957 = -872
-872 ÷ 957 = -0.9111807732497388
-0.9111807732497388 x 100 = -91.12%