139.17% is the change from 120 to 287
Calculation steps:
[( 287 - 120 ) ÷ 120] x 100 = 139.17%
Formula
Percentage change = [(287 - 120) / 120] x 100
Subtract the new number by the original number
287 - 120 = 167
167 ÷ 120 = 1.3916666666666666
1.3916666666666666 x 100 = 139.17%