134.5% is the change from 171 to 401
Calculation steps:
[( 401 - 171 ) ÷ 171] x 100 = 134.5%
Formula
Percentage change = [(401 - 171) / 171] x 100
Subtract the new number by the original number
401 - 171 = 230
230 ÷ 171 = 1.345029239766082
1.345029239766082 x 100 = 134.5%