-83.51% is the change from 958 to 158
Calculation steps:
[( 158 - 958 ) ÷ 958] x 100 = -83.51%
Formula
Percentage change = [(158 - 958) / 958] x 100
Subtract the new number by the original number
158 - 958 = -800
-800 ÷ 958 = -0.8350730688935282
-0.8350730688935282 x 100 = -83.51%