7.02% is the change from 470 to 503
Calculation steps:
[( 503 - 470 ) ÷ 470] x 100 = 7.02%
Formula
Percentage change = [(503 - 470) / 470] x 100
Subtract the new number by the original number
503 - 470 = 33
33 ÷ 470 = 0.07021276595744681
0.07021276595744681 x 100 = 7.02%