7.2% is the change from 472 to 506
Calculation steps:
[( 506 - 472 ) ÷ 472] x 100 = 7.2%
Formula
Percentage change = [(506 - 472) / 472] x 100
Subtract the new number by the original number
506 - 472 = 34
34 ÷ 472 = 0.07203389830508475
0.07203389830508475 x 100 = 7.2%