At the end of August there was $180,000 in inventory. At the end of September there was $190,000 in inventory. During August, $100,000 was paid to suppliers for purchases made in August and $10,000 was paid for purchases made prior to August. Septembers cost of goods sold was $420,000. The company pays for 80% of a months purchases in the month of the purchase and pays 20% in the month following the purchase. What is the total amount of cash disbursements made in September for purchases?