-9.9% is the change from 687 to 619
Calculation steps:
[( 619 - 687 ) ÷ 687] x 100 = -9.9%
Formula
Percentage change = [(619 - 687) / 687] x 100
Subtract the new number by the original number
619 - 687 = -68
-68 ÷ 687 = -0.09898107714701601
-0.09898107714701601 x 100 = -9.9%