Please refer to the following incomplete data describing a perfectly competitive firm. Assuming that this firm operated at its profit maximizing rate of output, how much economic profit would it earn? Average Total Marginal) Marginal Total Output Total Cost Cost Revenue Revenue Cost 0 $100 na na na $0 1 $120 $20 $120.00 $50 $50 2 $150 $30 ? $50 ? 3 $190 $40 $63.33 $50 $150 4 $240 ? $60.00 $50 $200 5 $300 $60 $60.00 $50 $250 6 $370 $70 $61.67 ? $300 7 $450 $80 $64.29 $50 $350