-87.5% is the change from 936 to 117
Calculation steps:
[( 117 - 936 ) ÷ 936] x 100 = -87.5%
Formula
Percentage change = [(117 - 936) / 936] x 100
Subtract the new number by the original number
117 - 936 = -819
-819 ÷ 936 = -0.875
-0.875 x 100 = -87.5%