302.34% is the change from 171 to 688
Calculation steps:
[( 688 - 171 ) ÷ 171] x 100 = 302.34%
Formula
Percentage change = [(688 - 171) / 171] x 100
Subtract the new number by the original number
688 - 171 = 517
517 ÷ 171 = 3.0233918128654973
3.0233918128654973 x 100 = 302.34%