9.63% is the change from 457 to 501
Calculation steps:
[( 501 - 457 ) ÷ 457] x 100 = 9.63%
Formula
Percentage change = [(501 - 457) / 457] x 100
Subtract the new number by the original number
501 - 457 = 44
44 ÷ 457 = 0.0962800875273523
0.0962800875273523 x 100 = 9.63%