7.31% is the change from 438 to 470
Calculation steps:
[( 470 - 438 ) ÷ 438] x 100 = 7.31%
Formula
Percentage change = [(470 - 438) / 438] x 100
Subtract the new number by the original number
470 - 438 = 32
32 ÷ 438 = 0.0730593607305936
0.0730593607305936 x 100 = 7.31%