-27.91% is the change from 172 to 124
Calculation steps:
[( 124 - 172 ) ÷ 172] x 100 = -27.91%
Formula
Percentage change = [(124 - 172) / 172] x 100
Subtract the new number by the original number
124 - 172 = -48
-48 ÷ 172 = -0.27906976744186046
-0.27906976744186046 x 100 = -27.91%