-8.72% is the change from 688 to 628
Calculation steps:
[( 628 - 688 ) ÷ 688] x 100 = -8.72%
Formula
Percentage change = [(628 - 688) / 688] x 100
Subtract the new number by the original number
628 - 688 = -60
-60 ÷ 688 = -0.0872093023255814
-0.0872093023255814 x 100 = -8.72%