-51.71% is the change from 847 to 409
Calculation steps:
[( 409 - 847 ) ÷ 847] x 100 = -51.71%
Formula
Percentage change = [(409 - 847) / 847] x 100
Subtract the new number by the original number
409 - 847 = -438
-438 ÷ 847 = -0.5171192443919717
-0.5171192443919717 x 100 = -51.71%