If bookstore ABC Books determines it is going to sell books at its profit-maximizing price of $18 in a market facing monopolistic competition, calculate total profit for the store.

Quantity	Price	Total Revenue	Marginal Revenue	Total Cost	Marginal Cost
0	$28	$0	-	$300	-
10	$25	$250	$25	$360	$6
20	$22	$440	$19	$440	$8
30	$20	$600	$16	$540	$10
40	$18	$720	$12	$660	$12
50	$16	$800	$8	$800	$14
60	$14	$840	$4	$960	$16

calculate total profit for the store.