29.74% is the change from 491 to 637
Calculation steps:
[( 637 - 491 ) ÷ 491] x 100 = 29.74%
Formula
Percentage change = [(637 - 491) / 491] x 100
Subtract the new number by the original number
637 - 491 = 146
146 ÷ 491 = 0.2973523421588595
0.2973523421588595 x 100 = 29.74%