-50.2% is the change from 994 to 495
Calculation steps:
[( 495 - 994 ) ÷ 994] x 100 = -50.2%
Formula
Percentage change = [(495 - 994) / 994] x 100
Subtract the new number by the original number
495 - 994 = -499
-499 ÷ 994 = -0.5020120724346077
-0.5020120724346077 x 100 = -50.2%