18.84% is the change from 621 to 738
Calculation steps:
[( 738 - 621 ) ÷ 621] x 100 = 18.84%
Formula
Percentage change = [(738 - 621) / 621] x 100
Subtract the new number by the original number
738 - 621 = 117
117 ÷ 621 = 0.18840579710144928
0.18840579710144928 x 100 = 18.84%