i have one homework question for accounting i find difficult for me to solve... this is the question, regarding valuation of stocks.

A city hard-ware company has three branches X, Y, and Z. Each store has identical trading volumes and the selling price is the same in each branch. All started the month of April 2005 with 150 units costing $12 each.

Each branch bought and sold as follows ;

purchased
April 2 purchased 200 units @<hidden> $14 each
5 purchased 250 units @<hidden> $15 each
10 purchased 250 units @<hidden> 16 each
18 purchased 200 units @<hidden> $18 each
25 purchased 220 units @<hidden> $18 each

sold
April 3 sold 180 units @<hidden> $25 each
7 sold 260 units @<hidden> $25 each
14 sold 220 units @<hidden> $26 each
22 sold 210 units @<hidden> $28 each
28 sold 330 units @<hidden> $30 each

The branches have the following expenses :
* selling expenses to administrative expenses in a ratio 5 : 1
* Financial expenses are 200% of administrative expenses.

Branch x uses the FIFO, Branch Y uses the LIFO, Branch Z uses the WAC.
Each stores,s net profit to sales percentage is 18%

REQUIRED :

Provide Revenue statement for Branch X, Y, and Z, for the month ending 30 April 2005