-40.45% is the change from 838 to 499
Calculation steps:
[( 499 - 838 ) ÷ 838] x 100 = -40.45%
Formula
Percentage change = [(499 - 838) / 838] x 100
Subtract the new number by the original number
499 - 838 = -339
-339 ÷ 838 = -0.4045346062052506
-0.4045346062052506 x 100 = -40.45%