Intercontinental, Incorporated, uses a perpetual inventory system. Consider the following information about its inventory. August 1 , purchased 10 units for $910 or $91 per unit, August 3, purchased 15 units for $1,590 or $106 per unit, August 14. sold 20 units, August 17. purchased 20 units for $2.300 or $115 per unit: August 28 , purchased 10 units for $1.190 or $119 per unit: August 30 . sold 23 untes Using FFFO, the cost of goods sold for the sole of 23 units on August 30 is and the inventory balance at August 30 is