i would appricate an explanable answer so that i can understand the problem

Urban Glam Cosmetics made purchases of lipstick in the current year as follows: Urban Glam Cosmetics made sales on the foliowing dates at a selling price of $35 per unit: Required: The business uses a perpetual inventory system. 1. Determine the costs that should be assigned to the ending inventory and to goods sold under the following methods. (Do not round intermediate calculations. Round your final answers to 2 decimal places.)