Consider the following data:

$$

Fixed costs $=$ $$10,000,000.$Variable cost per inpatient day $=$ $$400.$Revenue per inpatient day $=$ $$1,200.$

What is the contribution margin?

Question $6$ options:

$1)$

$$400$

$2)$

$$800$

$3)$

$$1,200$

$4)$

$$1,600$