-49.75% is the change from 808 to 406
Calculation steps:
[( 406 - 808 ) ÷ 808] x 100 = -49.75%
Formula
Percentage change = [(406 - 808) / 808] x 100
Subtract the new number by the original number
406 - 808 = -402
-402 ÷ 808 = -0.4975247524752475
-0.4975247524752475 x 100 = -49.75%