Questions to consider ■ How much is fixed cost? a Is marginal cost calculated based on total cost or variable cost? Why is marginal revenue constant at $18? a What is net gain? Is the goal to maximize net gain?Questions to consider: ◼ How much is fixed cost? ◼ Is marginal cost calculated based on total cost or variable cost? ◼ Why is marginal revenue constant at $18? ◼ What is net gain? ◼ Is the goal to maximize net gain?