-26.84% is the change from 678 to 496
Calculation steps:
[( 496 - 678 ) ÷ 678] x 100 = -26.84%
Formula
Percentage change = [(496 - 678) / 678] x 100
Subtract the new number by the original number
496 - 678 = -182
-182 ÷ 678 = -0.26843657817109146
-0.26843657817109146 x 100 = -26.84%