-40.1% is the change from 833 to 499
Calculation steps:
[( 499 - 833 ) ÷ 833] x 100 = -40.1%
Formula
Percentage change = [(499 - 833) / 833] x 100
Subtract the new number by the original number
499 - 833 = -334
-334 ÷ 833 = -0.4009603841536615
-0.4009603841536615 x 100 = -40.1%