-50.4% is the change from 996 to 494
Calculation steps:
[( 494 - 996 ) ÷ 996] x 100 = -50.4%
Formula
Percentage change = [(494 - 996) / 996] x 100
Subtract the new number by the original number
494 - 996 = -502
-502 ÷ 996 = -0.5040160642570282
-0.5040160642570282 x 100 = -50.4%