-30.36% is the change from 168 to 117
Calculation steps:
[( 117 - 168 ) ÷ 168] x 100 = -30.36%
Formula
Percentage change = [(117 - 168) / 168] x 100
Subtract the new number by the original number
117 - 168 = -51
-51 ÷ 168 = -0.30357142857142855
-0.30357142857142855 x 100 = -30.36%