PT corp makes 300 units of A per year. At this level, the cost per unit includes $360 in direct materials, $1,000 in direct labor, $240 in variable overhead, and $900 in fixed overhead. An outside supplier has offered to make all 300 units for $2,100 per unit. If PT accepts this offer, two thirds of the fixed overhead would persist, but would be defrayed by renting out the floor space for $72,000 per year.

What is the total fixed costs from the original estimate of production costs per unit?

How much of the total fixed costs will persist (including defrayal by renting the space)?