Current Attempt in Progress Blossom Center began operations on July 1. It uses a perpetual inventory system. During July, the company had the following purchases and sales. Purchases Date Units Unit Cost Sales Units July 1 9 $60 July 6 7 July 11 $64 July 14 6 July 21 $68 July 27 7 (a1) Calculate weighted average unit cost. (Round answers to 3 decimal places, e.g. 15.251.) July 1 July 6 SA 1A $ 1 July 11 $ July 14 $ July 21 $ July 27 $