-27.91% is the change from 688 to 496
Calculation steps:
[( 496 - 688 ) ÷ 688] x 100 = -27.91%
Formula
Percentage change = [(496 - 688) / 688] x 100
Subtract the new number by the original number
496 - 688 = -192
-192 ÷ 688 = -0.27906976744186046
-0.27906976744186046 x 100 = -27.91%