13.8% is the change from 623 to 709
Calculation steps:
[( 709 - 623 ) ÷ 623] x 100 = 13.8%
Formula
Percentage change = [(709 - 623) / 623] x 100
Subtract the new number by the original number
709 - 623 = 86
86 ÷ 623 = 0.13804173354735153
0.13804173354735153 x 100 = 13.8%