-51.48% is the change from 843 to 409
Calculation steps:
[( 409 - 843 ) ÷ 843] x 100 = -51.48%
Formula
Percentage change = [(409 - 843) / 843] x 100
Subtract the new number by the original number
409 - 843 = -434
-434 ÷ 843 = -0.5148279952550415
-0.5148279952550415 x 100 = -51.48%