Date		Accounts	Debits	Credits
1/7/2020	Dr	Accounts Payble	$270
	Cr	Sales Revenue		$270
1/8/2020	Dr	Cash	375
	Cr	Accounts Receivable		375
1/12/2020	Dr	Accounts Receivable	900
	Cr	Sales Revenue		900
	Dr	Costs of Good sold	810
	Cr	Inventory		810
1/14/2020	Dr	Inventory	1,120
	Cr	Accounts Payable		1,120
1/17/2020	Dr	Cash	1,000
	Cr	Common Stock		1,000
1/20/2020	Dr	Cash	650
	Cr	Sales Revenue		650
	Dr	Costs of goods sold	550
	Cr	Inventory		550
1/28/2020	Dr	Cash	900
	Cr	Accounts Receivable		900
1/31/2020	Dr	Accounts Payable	2,200
	Cr	Cash		2,200

What is the cash balance at the end of January 2020?