26.27% is the change from 491 to 620
Calculation steps:
[( 620 - 491 ) ÷ 491] x 100 = 26.27%
Formula
Percentage change = [(620 - 491) / 491] x 100
Subtract the new number by the original number
620 - 491 = 129
129 ÷ 491 = 0.26272912423625255
0.26272912423625255 x 100 = 26.27%