Blossom Company uses a perpetual inventory system and reports the following for the month of June.

$\backslash$table$[[$Date$,$Explanation,Units,Unit Cost,Total Cost$],[$June $1,$Inventory,$120,$$$5,$$$600$

Calculate the weighted average cost per unit using a perpetual inventory system. Assume a sale of $400$ units occured on june $15$ for a selling price of $$8$ and a sale of $60$ units on june $27$ for $$9$