At which quantity does this firm produce the least marginal revenue? Quantity Total Revenue Marginal Revenue Total Cost Marginal Cost (Q) (TR) (MR) (TC) (MC) 1, 200 ? 500 500 2 2, 200 ? 775 275 3, 400 ? 1, 000 225 4, 900 1, 250 250 5, 500 1, 650 400 6, 000 2, 500 850 6, 500 4, 000 1, 500 6, 200 6, 400 2, 400 Provide your answer below