Accounting.... Let me try to better explain this question?

merchandise inventory beginning is 6000

merchandise purchases is 36000

Total merchandise available for sale is $42,000

If out of that, COGS is $34,050, then cost of goods not sold (i.e. ending inventory) is $42,000 - $34,050 = $7,950.

sales is $60,000

COGS is $34,050

Gross profit = Sales less COGS = $60,000 - $34,050 = $25,950.

Net income = Gross profit less expenses = $25,950 - $9,000 = $16,950.

Something is missing. In order to answer your first question, you would need to know the cost of goods sold, or the gross profit in either percent or money (so you could figure out the cost of goods sold). In your second question you would need to know either the purchases or the cost of goods sold (or be able to derive one of those numbers from some other information. There is simple no other way to do it.

The formula is

Beginning Inventory

Less Cost of Sales

Plus Purchases

Equals Ending Inventory

So....

$6,000 beg inv

$ less cost of goods sold (you need more info here such as a % figure that you multiple against the revenue figure of $60,000)

$36,000 plus purchases

$ equals ending inventory

Since you are provided with a sales figure, you must also be provided with a gross profit margin or something similar. Multiply that % by the sales (revenue) figure to arrive at a gross profit. Then subtract gross profit from sales (revenue) for the total cost of goods sold.

The formula for that calculation is:

Revenue

less cost of good sold

equals gross profit

Gross margin is equal to gross profit divided by revenue.