-20.77% is the change from 496 to 393
Calculation steps:
[( 393 - 496 ) ÷ 496] x 100 = -20.77%
Formula
Percentage change = [(393 - 496) / 496] x 100
Subtract the new number by the original number
393 - 496 = -103
-103 ÷ 496 = -0.20766129032258066
-0.20766129032258066 x 100 = -20.77%