-6.17% is the change from 665 to 624
Calculation steps:
[( 624 - 665 ) ÷ 665] x 100 = -6.17%
Formula
Percentage change = [(624 - 665) / 665] x 100
Subtract the new number by the original number
624 - 665 = -41
-41 ÷ 665 = -0.061654135338345864
-0.061654135338345864 x 100 = -6.17%