In a slow year, Deutsche Burgers will produce $2$ million hamburgers at a total cost of $$3\mathrm{.}5$ million. In a good year, it can produce $4$ million hamburgers at a total cost of $$4\mathrm{.}5$ million.

What are the fixed costs of hamburger production?

Note: Do not round intermediate calculations. Enter your answer in millions rounded to $1$ decimal place.

What is the variable cost per hamburger?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

What is the average cost per burger when the firm produces $1$ million hamburgers?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

What is the average cost per burger when the firm produces $2$ million hamburgers?

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

Why is the average cost lower when more burgers are produced?