Dumbart Company had the following 12 months of data on purchasing cost and number of purchase orders:

Month		Purchasing Cost		Number of Purchase Orders
January		$18,860		370
February		18,040		320
March		19,250		410
April		18,030		370
May		19,345		400
June		19,500		450
July		19,670		460
August		20,920		560
September		19,430		440
October		20,020		500
November		18,800		470
December		19,340		480

1. Using the high-low method, write the cost formula for the purchasing activity showing the fixed cost and the variable rate. Round variable rate to the nearest cent.

2. If Dumbart Company estimates that next month will have 440 purchase orders, what is the total estimated purchasing cost for that month?