57.14% is the change from 140 to 220
Calculation steps:
[( 220 - 140 ) ÷ 140] x 100 = 57.14%
Formula
Percentage change = [(220 - 140) / 140] x 100
Subtract the new number by the original number
220 - 140 = 80
80 ÷ 140 = 0.5714285714285714
0.5714285714285714 x 100 = 57.14%