-50.6% is the change from 496 to 245
Calculation steps:
[( 245 - 496 ) ÷ 496] x 100 = -50.6%
Formula
Percentage change = [(245 - 496) / 496] x 100
Subtract the new number by the original number
245 - 496 = -251
-251 ÷ 496 = -0.5060483870967742
-0.5060483870967742 x 100 = -50.6%