-33.62% is the change from 687 to 456
Calculation steps:
[( 456 - 687 ) ÷ 687] x 100 = -33.62%
Formula
Percentage change = [(456 - 687) / 687] x 100
Subtract the new number by the original number
456 - 687 = -231
-231 ÷ 687 = -0.33624454148471616
-0.33624454148471616 x 100 = -33.62%