28.97% is the change from 497 to 641
Calculation steps:
[( 641 - 497 ) ÷ 497] x 100 = 28.97%
Formula
Percentage change = [(641 - 497) / 497] x 100
Subtract the new number by the original number
641 - 497 = 144
144 ÷ 497 = 0.289738430583501
0.289738430583501 x 100 = 28.97%