-51.67% is the change from 836 to 404
Calculation steps:
[( 404 - 836 ) ÷ 836] x 100 = -51.67%
Formula
Percentage change = [(404 - 836) / 836] x 100
Subtract the new number by the original number
404 - 836 = -432
-432 ÷ 836 = -0.5167464114832536
-0.5167464114832536 x 100 = -51.67%