-21.37% is the change from 496 to 390
Calculation steps:
[( 390 - 496 ) ÷ 496] x 100 = -21.37%
Formula
Percentage change = [(390 - 496) / 496] x 100
Subtract the new number by the original number
390 - 496 = -106
-106 ÷ 496 = -0.21370967741935484
-0.21370967741935484 x 100 = -21.37%