-11.63% is the change from 172 to 152
Calculation steps:
[( 152 - 172 ) ÷ 172] x 100 = -11.63%
Formula
Percentage change = [(152 - 172) / 172] x 100
Subtract the new number by the original number
152 - 172 = -20
-20 ÷ 172 = -0.11627906976744186
-0.11627906976744186 x 100 = -11.63%