-48.74% is the change from 277 to 142
Calculation steps:
[( 142 - 277 ) ÷ 277] x 100 = -48.74%
Formula
Percentage change = [(142 - 277) / 277] x 100
Subtract the new number by the original number
142 - 277 = -135
-135 ÷ 277 = -0.48736462093862815
-0.48736462093862815 x 100 = -48.74%