33.96% is the change from 53 to 71
Calculation steps:
[( 71 - 53 ) ÷ 53] x 100 = 33.96%
Formula
Percentage change = [(71 - 53) / 53] x 100
Subtract the new number by the original number
71 - 53 = 18
18 ÷ 53 = 0.33962264150943394
0.33962264150943394 x 100 = 33.96%