-81.84% is the change from 936 to 170
Calculation steps:
[( 170 - 936 ) ÷ 936] x 100 = -81.84%
Formula
Percentage change = [(170 - 936) / 936] x 100
Subtract the new number by the original number
170 - 936 = -766
-766 ÷ 936 = -0.8183760683760684
-0.8183760683760684 x 100 = -81.84%