6.74% is the change from 623 to 665
Calculation steps:
[( 665 - 623 ) ÷ 623] x 100 = 6.74%
Formula
Percentage change = [(665 - 623) / 623] x 100
Subtract the new number by the original number
665 - 623 = 42
42 ÷ 623 = 0.06741573033707865
0.06741573033707865 x 100 = 6.74%