6.81% is the change from 470 to 502
Calculation steps:
[( 502 - 470 ) ÷ 470] x 100 = 6.81%
Formula
Percentage change = [(502 - 470) / 470] x 100
Subtract the new number by the original number
502 - 470 = 32
32 ÷ 470 = 0.06808510638297872
0.06808510638297872 x 100 = 6.81%