-91.05% is the change from 950 to 85
Calculation steps:
[( 85 - 950 ) ÷ 950] x 100 = -91.05%
Formula
Percentage change = [(85 - 950) / 950] x 100
Subtract the new number by the original number
85 - 950 = -865
-865 ÷ 950 = -0.9105263157894737
-0.9105263157894737 x 100 = -91.05%