9.85% is the change from 457 to 502
Calculation steps:
[( 502 - 457 ) ÷ 457] x 100 = 9.85%
Formula
Percentage change = [(502 - 457) / 457] x 100
Subtract the new number by the original number
502 - 457 = 45
45 ÷ 457 = 0.09846827133479212
0.09846827133479212 x 100 = 9.85%