-37.7% is the change from 687 to 428
Calculation steps:
[( 428 - 687 ) ÷ 687] x 100 = -37.7%
Formula
Percentage change = [(428 - 687) / 687] x 100
Subtract the new number by the original number
428 - 687 = -259
-259 ÷ 687 = -0.37700145560407566
-0.37700145560407566 x 100 = -37.7%