-17.44% is the change from 172 to 142
Calculation steps:
[( 142 - 172 ) ÷ 172] x 100 = -17.44%
Formula
Percentage change = [(142 - 172) / 172] x 100
Subtract the new number by the original number
142 - 172 = -30
-30 ÷ 172 = -0.1744186046511628
-0.1744186046511628 x 100 = -17.44%