Crane Company uses a perpetual inventory system and reports the following for the month of June. Calculate the weighted-average cost per unit, using a perpetual inventory system. Assume a sale of 400 units occurred on June 15 for a selling price of $9 and a salc of 50 units on June 27 for $10. (Round intermedlate caiculations to 0 decimol ploces, eg 152 and finol answers to 3 dechmal ploces, eg 5.125.) June 1 June 12 June 15 June 23 June 27