6.57% is the change from 472 to 503
Calculation steps:
[( 503 - 472 ) ÷ 472] x 100 = 6.57%
Formula
Percentage change = [(503 - 472) / 472] x 100
Subtract the new number by the original number
503 - 472 = 31
31 ÷ 472 = 0.06567796610169492
0.06567796610169492 x 100 = 6.57%