Bramble companys record of transactions concerning part x

Question

Problem - Bramble Company's record of transactions concerning part X for the month of April was as follows.

Date             Purchases                        Date Sales

April 1          230 @ $5.40                 April 5 430

4                  530 @ 5.51                    12          330

11                 430 @5.72                     27         1060

18               330 @5.78                     28           150

26              730 @ 6.05             

30              330 @6.26

Calculate average-cost per unit. Assume that perpetual inventory records are kept in units only. (Round answer to 2 decimal places, e.g. 2.76.)