-49.82% is the change from 277 to 139
Calculation steps:
[( 139 - 277 ) ÷ 277] x 100 = -49.82%
Formula
Percentage change = [(139 - 277) / 277] x 100
Subtract the new number by the original number
139 - 277 = -138
-138 ÷ 277 = -0.4981949458483754
-0.4981949458483754 x 100 = -49.82%