-19.01% is the change from 142 to 115
Calculation steps:
[( 115 - 142 ) ÷ 142] x 100 = -19.01%
Formula
Percentage change = [(115 - 142) / 142] x 100
Subtract the new number by the original number
115 - 142 = -27
-27 ÷ 142 = -0.19014084507042253
-0.19014084507042253 x 100 = -19.01%