-8.47% is the change from 496 to 454
Calculation steps:
[( 454 - 496 ) ÷ 496] x 100 = -8.47%
Formula
Percentage change = [(454 - 496) / 496] x 100
Subtract the new number by the original number
454 - 496 = -42
-42 ÷ 496 = -0.0846774193548387
-0.0846774193548387 x 100 = -8.47%