-49.75% is the change from 814 to 409
Calculation steps:
[( 409 - 814 ) ÷ 814] x 100 = -49.75%
Formula
Percentage change = [(409 - 814) / 814] x 100
Subtract the new number by the original number
409 - 814 = -405
-405 ÷ 814 = -0.4975429975429975
-0.4975429975429975 x 100 = -49.75%