-13.67% is the change from 139 to 120
Calculation steps:
[( 120 - 139 ) ÷ 139] x 100 = -13.67%
Formula
Percentage change = [(120 - 139) / 139] x 100
Subtract the new number by the original number
120 - 139 = -19
-19 ÷ 139 = -0.1366906474820144
-0.1366906474820144 x 100 = -13.67%