-97.38% is the change from 496 to 13
Calculation steps:
[( 13 - 496 ) ÷ 496] x 100 = -97.38%
Formula
Percentage change = [(13 - 496) / 496] x 100
Subtract the new number by the original number
13 - 496 = -483
-483 ÷ 496 = -0.9737903225806451
-0.9737903225806451 x 100 = -97.38%