-49.59% is the change from 980 to 494
Calculation steps:
[( 494 - 980 ) ÷ 980] x 100 = -49.59%
Formula
Percentage change = [(494 - 980) / 980] x 100
Subtract the new number by the original number
494 - 980 = -486
-486 ÷ 980 = -0.4959183673469388
-0.4959183673469388 x 100 = -49.59%