271.93% is the change from 171 to 636
Calculation steps:
[( 636 - 171 ) ÷ 171] x 100 = 271.93%
Formula
Percentage change = [(636 - 171) / 171] x 100
Subtract the new number by the original number
636 - 171 = 465
465 ÷ 171 = 2.719298245614035
2.719298245614035 x 100 = 271.93%