-6.45% is the change from 667 to 624
Calculation steps:
[( 624 - 667 ) ÷ 667] x 100 = -6.45%
Formula
Percentage change = [(624 - 667) / 667] x 100
Subtract the new number by the original number
624 - 667 = -43
-43 ÷ 667 = -0.06446776611694154
-0.06446776611694154 x 100 = -6.45%