-90.9% is the change from 945 to 86
Calculation steps:
[( 86 - 945 ) ÷ 945] x 100 = -90.9%
Formula
Percentage change = [(86 - 945) / 945] x 100
Subtract the new number by the original number
86 - 945 = -859
-859 ÷ 945 = -0.908994708994709
-0.908994708994709 x 100 = -90.9%