How is cash balance calculated at the end of a month?

		By deducting the total cash payments from the sum of the balance at the beginning of the month and the total cash receipts
		By deducting the balance at the beginning of the month from the sum of the total cash payments and total cash receipts
		By deducting total cash receipts from the sum of the total cash payments and the balance at the beginning of the month
		By adding the balance at the beginning of the month, the total cash receipts, and the total cash payments