-86.9% is the change from 168 to 22
Calculation steps:
[( 22 - 168 ) ÷ 168] x 100 = -86.9%
Formula
Percentage change = [(22 - 168) / 168] x 100
Subtract the new number by the original number
22 - 168 = -146
-146 ÷ 168 = -0.8690476190476191
-0.8690476190476191 x 100 = -86.9%