cortez company sells chairs that are used at computer stations. its begining inventory of chairs was $230$ units at $46$ per unit. during the year cortex made two bath purchases of this chair. the first was a $255$ unit purchase at $51$ per unit. the second was a $365-$unit purchase at $53$ per unit. during the period it sold $545$ chairs. determine the amount of product costs that would be allocated to cost of goods sold adn ending inventory, assuming that Cortez uses a$.$FIFO b$.$LIFO c$.$Weighted average