12.53% is the change from 447 to 503
Calculation steps:
[( 503 - 447 ) ÷ 447] x 100 = 12.53%
Formula
Percentage change = [(503 - 447) / 447] x 100
Subtract the new number by the original number
503 - 447 = 56
56 ÷ 447 = 0.12527964205816555
0.12527964205816555 x 100 = 12.53%