-12.68% is the change from 142 to 124
Calculation steps:
[( 124 - 142 ) ÷ 142] x 100 = -12.68%
Formula
Percentage change = [(124 - 142) / 142] x 100
Subtract the new number by the original number
124 - 142 = -18
-18 ÷ 142 = -0.1267605633802817
-0.1267605633802817 x 100 = -12.68%