Use the weighted-average (AVG) cost allocation method, with perpetual inventory updating, to calculate gross margin for A7A Company, considering the following transactions. Number of Units Beginning Inventory 110 Purchases Mar 15 140 Sold Mar 31 for $85 per 75 unit Unit Cost 31 35 Enter answer as whole number only, do not include commas or decimals. (For example 25,305.35 would be entered as 2530535)