-51.19% is the change from 838 to 409
Calculation steps:
[( 409 - 838 ) ÷ 838] x 100 = -51.19%
Formula
Percentage change = [(409 - 838) / 838] x 100
Subtract the new number by the original number
409 - 838 = -429
-429 ÷ 838 = -0.5119331742243437
-0.5119331742243437 x 100 = -51.19%