-8.14% is the change from 172 to 158
Calculation steps:
[( 158 - 172 ) ÷ 172] x 100 = -8.14%
Formula
Percentage change = [(158 - 172) / 172] x 100
Subtract the new number by the original number
158 - 172 = -14
-14 ÷ 172 = -0.08139534883720931
-0.08139534883720931 x 100 = -8.14%