Question

to calculate profit, producers subtract their total production cost from their
total revenue
marginal revenue
marginal cost
total units produced

Explanation:

To calculate profit, the formula is Profit = Total Revenue - Total Production Cost. So producers subtract total production cost from total revenue. The other options: marginal revenue is the change in revenue from one more unit, marginal cost is the change in cost from one more unit, and total units produced isn't used in this profit calculation formula.

Answer:

total revenue