-37.35% is the change from 688 to 431
Calculation steps:
[( 431 - 688 ) ÷ 688] x 100 = -37.35%
Formula
Percentage change = [(431 - 688) / 688] x 100
Subtract the new number by the original number
431 - 688 = -257
-257 ÷ 688 = -0.373546511627907
-0.373546511627907 x 100 = -37.35%