-83.61% is the change from 964 to 158
Calculation steps:
[( 158 - 964 ) ÷ 964] x 100 = -83.61%
Formula
Percentage change = [(158 - 964) / 964] x 100
Subtract the new number by the original number
158 - 964 = -806
-806 ÷ 964 = -0.8360995850622407
-0.8360995850622407 x 100 = -83.61%