-5.56% is the change from 665 to 628
Calculation steps:
[( 628 - 665 ) ÷ 665] x 100 = -5.56%
Formula
Percentage change = [(628 - 665) / 665] x 100
Subtract the new number by the original number
628 - 665 = -37
-37 ÷ 665 = -0.055639097744360905
-0.055639097744360905 x 100 = -5.56%