-27.8% is the change from 687 to 496
Calculation steps:
[( 496 - 687 ) ÷ 687] x 100 = -27.8%
Formula
Percentage change = [(496 - 687) / 687] x 100
Subtract the new number by the original number
496 - 687 = -191
-191 ÷ 687 = -0.2780203784570597
-0.2780203784570597 x 100 = -27.8%