-87.58% is the change from 942 to 117
Calculation steps:
[( 117 - 942 ) ÷ 942] x 100 = -87.58%
Formula
Percentage change = [(117 - 942) / 942] x 100
Subtract the new number by the original number
117 - 942 = -825
-825 ÷ 942 = -0.8757961783439491
-0.8757961783439491 x 100 = -87.58%