20.34% is the change from 408 to 491
Calculation steps:
[( 491 - 408 ) ÷ 408] x 100 = 20.34%
Formula
Percentage change = [(491 - 408) / 408] x 100
Subtract the new number by the original number
491 - 408 = 83
83 ÷ 408 = 0.2034313725490196
0.2034313725490196 x 100 = 20.34%