Chapter 6 Homework eBook Show Me How Periodic Inventory by Three Methods Dymac Appliances uses the periodic inventory system. Details regarding the inventery of appliances at January 1, purchases invoices during the next 12 months, and the inventory count at December 31 are summarized as follows: Purchases Invoices Inventory, Inventory Count, Model January 1 1st 2nd 3rd December 31 A10 815 4 at $64 4 at $70 4 at $76 6 8 at $176 4 at 158 at 170 6 at 184 B EGO 3 at 75 3 at 65 15 at 68 9 70 683 7 at 242 6 at 250 Sat 260 10 at 259 " 234 12 at 240 10 at 246 16 at 267 16t 270 15 190 2 at 108 2 at 110 3 at 128 3 at 130 5 Q70 5 at 160 4 at 170 4t 175 7 180