Please show EXCEL FORMULAS USED IN GETTING THE VALUES

Spitzer Company has collected sales forecasts for next year from three people.
Sources of Sales Estimate	1st Quarter	2nd Quarter	3rd Quarter	4th Quarter
a	Sales Manager	$520,000	$410,000	$370,000	$610,000
b	Marketing Consultant	$540,000	$480,000	$400,000	$630,000
c	Production Manager	$460,000	$360,000	$350,000	$580,000
They have estimated that the cost of goods sold is 70 percent of sales. The company tries to maintain 10 percent of next quarter's expected cost of goods sold as the current quarter's ending inventory. The ending inventory of this year is $25,000. For budgeting, the ending inventory of the next year is expected to be $28,000.	70%	10%	$25,000	$28,000
Required
a. Complete the spreadsheet below to allow the inventory purchases budget to be prepared for each of the estimates above.
Spreadsheet Tips
1. This spreadsheet uses a function called vertical lookup. This function can pull the appropriate values from a table. The form of this function is =VLOOKUP(value,table,column#). In this example, the table is in cells A5 to F7. Three examples of the use of VLOOKUP follow.
2. Cell B23 is =VLOOKUP(A23,A5:F7,2). This function operates by using the letter "c" in cell A23 to look up a value in the table. Notice that the table is defined as A5:F7 and that the function is looking up the value in the second column, which is Production Manager.
3. Cell C26 is =VLOOKUP(A23,A5:F7,3). In this case, the function is looking up the value in the third column, which is 460,000. Be sure to count empty columns.
4. Cells D26, E26, and F26 also use the VLOOKUP function.
5. After completing the spreadsheet, you can change the value in cell A23 (a-c) to see the effect of choosing a different source of sales estimate.
Change the budget by changing the value in cell A23.
Inventory Purchases Budget Based on Estimates by:
	1st Quarter	2nd Quarter	3rd Quarter	4th Quarter
	Expected Sales	#NAME?
x	Cost of Goods Sold %
	Cost of Budgeted Sales
+	Desired Ending Inventory
	Inventory Needed
-	Beginning Inventory
	Amount to Purchase