72.84% is the change from 81 to 140
Calculation steps:
[( 140 - 81 ) ÷ 81] x 100 = 72.84%
Formula
Percentage change = [(140 - 81) / 81] x 100
Subtract the new number by the original number
140 - 81 = 59
59 ÷ 81 = 0.7283950617283951
0.7283950617283951 x 100 = 72.84%