-7.79% is the change from 680 to 627
Calculation steps:
[( 627 - 680 ) ÷ 680] x 100 = -7.79%
Formula
Percentage change = [(627 - 680) / 680] x 100
Subtract the new number by the original number
627 - 680 = -53
-53 ÷ 680 = -0.07794117647058824
-0.07794117647058824 x 100 = -7.79%