-43.55% is the change from 496 to 280
Calculation steps:
[( 280 - 496 ) ÷ 496] x 100 = -43.55%
Formula
Percentage change = [(280 - 496) / 496] x 100
Subtract the new number by the original number
280 - 496 = -216
-216 ÷ 496 = -0.43548387096774194
-0.43548387096774194 x 100 = -43.55%