-15.72% is the change from 687 to 579
Calculation steps:
[( 579 - 687 ) ÷ 687] x 100 = -15.72%
Formula
Percentage change = [(579 - 687) / 687] x 100
Subtract the new number by the original number
579 - 687 = -108
-108 ÷ 687 = -0.1572052401746725
-0.1572052401746725 x 100 = -15.72%