421.05% is the change from 171 to 891
Calculation steps:
[( 891 - 171 ) ÷ 171] x 100 = 421.05%
Formula
Percentage change = [(891 - 171) / 171] x 100
Subtract the new number by the original number
891 - 171 = 720
720 ÷ 171 = 4.2105263157894735
4.2105263157894735 x 100 = 421.05%