-31.4% is the change from 172 to 118
Calculation steps:
[( 118 - 172 ) ÷ 172] x 100 = -31.4%
Formula
Percentage change = [(118 - 172) / 172] x 100
Subtract the new number by the original number
118 - 172 = -54
-54 ÷ 172 = -0.313953488372093
-0.313953488372093 x 100 = -31.4%