-49.39% is the change from 980 to 496
Calculation steps:
[( 496 - 980 ) ÷ 980] x 100 = -49.39%
Formula
Percentage change = [(496 - 980) / 980] x 100
Subtract the new number by the original number
496 - 980 = -484
-484 ÷ 980 = -0.49387755102040815
-0.49387755102040815 x 100 = -49.39%