28.89% is the change from 495 to 638
Calculation steps:
[( 638 - 495 ) ÷ 495] x 100 = 28.89%
Formula
Percentage change = [(638 - 495) / 495] x 100
Subtract the new number by the original number
638 - 495 = 143
143 ÷ 495 = 0.28888888888888886
0.28888888888888886 x 100 = 28.89%