12.3% is the change from 447 to 502
Calculation steps:
[( 502 - 447 ) ÷ 447] x 100 = 12.3%
Formula
Percentage change = [(502 - 447) / 447] x 100
Subtract the new number by the original number
502 - 447 = 55
55 ÷ 447 = 0.12304250559284116
0.12304250559284116 x 100 = 12.3%