Response to the following problem:
The management of the Book Warehouse Company wishes to apply the Miller-Orr model to manage its cash investment. They have determined that the cost of either investing in or selling marketable securities is $100. By looking at Book Warehouse's past cash needs, they have determined that the variance of daily cash flows is $20,000. Book Warehouse's opportunity cost of cash, per day, is estimated to be 0.03%. Based on experience, management has determined that the cash balance should never fall below $10,000.
Calculate the lower limit, the return point, and the upper limit based on the Miller-Orr model of cash management.