6.73% is the change from 624 to 666
Calculation steps:
[( 666 - 624 ) ÷ 624] x 100 = 6.73%
Formula
Percentage change = [(666 - 624) / 624] x 100
Subtract the new number by the original number
666 - 624 = 42
42 ÷ 624 = 0.0673076923076923
0.0673076923076923 x 100 = 6.73%