421.98% is the change from 91 to 475
Calculation steps:
[( 475 - 91 ) ÷ 91] x 100 = 421.98%
Formula
Percentage change = [(475 - 91) / 91] x 100
Subtract the new number by the original number
475 - 91 = 384
384 ÷ 91 = 4.21978021978022
4.21978021978022 x 100 = 421.98%