Brief Exercise 8-4 (Part Level Submission) Sandhill Company uses a periodic inventory system. For April, when the company sold 550 units, the following information is available Units Unit Cost Total Cost Apil 1 inventory260 April 15 purchase 430 April 23 purchase310 1,000 $15 18 20 3,900 7,740 6,200 $17,840 (a) Calculate weighted average cost per unit, (Round answer to 2 decimal places, e.g. 2.76) weighted average cost per units