-10.19% is the change from 687 to 617
Calculation steps:
[( 617 - 687 ) ÷ 687] x 100 = -10.19%
Formula
Percentage change = [(617 - 687) / 687] x 100
Subtract the new number by the original number
617 - 687 = -70
-70 ÷ 687 = -0.10189228529839883
-0.10189228529839883 x 100 = -10.19%
Example