-49.32% is the change from 807 to 409
Calculation steps:
[( 409 - 807 ) ÷ 807] x 100 = -49.32%
Formula
Percentage change = [(409 - 807) / 807] x 100
Subtract the new number by the original number
409 - 807 = -398
-398 ÷ 807 = -0.49318463444857497
-0.49318463444857497 x 100 = -49.32%