Red Brick Bank plans to launch a new deposit campaign next week in hopes of bringing in from $100 million to $600 million in new deposit money, which it expects to invest at a 5.5 percent yield. Management believes that an offer rate on new deposits of 2.75 percent would attract $100 million in new deposits and rollover funds. To attract $200 million, the bank would probably be forced to offer 3.25 percent. Red Brick’s forecast suggests that $300 million might be available at 3.75 percent, $400 million at 4.00 percent, $500 million at 4.25 percent, and $600 million at 4.5 percent. What volume of deposits should the institution try to attract to ensure that marginal cost does not exceed marginal revenue?