7.88% is the change from 406 to 438
Calculation steps:
[( 438 - 406 ) ÷ 406] x 100 = 7.88%
Formula
Percentage change = [(438 - 406) / 406] x 100
Subtract the new number by the original number
438 - 406 = 32
32 ÷ 406 = 0.07881773399014778
0.07881773399014778 x 100 = 7.88%