The following table includes quarterly working capital levels for your firm for the next year. Quarter ($000) 1 2 3 4 Cash 100 100 100 100 Accounts Receivable 200 100 100 600 Inventory 200 500 900 50 Accounts Payable 100 100 100 100 If you want to limit your maximum short-term borrowing to $300(,000) and maintain a minimum cash balance of $100(,000), what is the maximum amount of excess cash must you carry during this year