Kwaku the traveler ltd's stock records show the following transactions for a specific item during last month: The organization made issues of inventory on 5th, 19th and 27th of 100 units, 190 units and 170 units respectively whiles it received 400 units on 7th at the price of GHC17.5 per unit. The opening inventory was 200 units valued at GHC2900. 

Using the weighted average method, the total value of closing inventory for last month is?