-49.57% is the change from 809 to 408
Calculation steps:
[( 408 - 809 ) ÷ 809] x 100 = -49.57%
Formula
Percentage change = [(408 - 809) / 809] x 100
Subtract the new number by the original number
408 - 809 = -401
-401 ÷ 809 = -0.4956736711990111
-0.4956736711990111 x 100 = -49.57%