-83.9% is the change from 969 to 156
Calculation steps:
[( 156 - 969 ) ÷ 969] x 100 = -83.9%
Formula
Percentage change = [(156 - 969) / 969] x 100
Subtract the new number by the original number
156 - 969 = -813
-813 ÷ 969 = -0.8390092879256966
-0.8390092879256966 x 100 = -83.9%