Final answer:
Precise calculations for the cost of ending inventory and cost of goods sold using the requested inventory costing methods cannot be provided without the necessary purchase dates and unit cost details.
Step-by-step explanation:
Flora's Gifts needs to determine the cost assigned to ending inventory and to cost of goods sold using different inventory costing methods: specific identification, weighted average, FIFO, and LIFO. Unfortunately, the specific purchase dates and unit costs are not provided, hence a precise calculation cannot be provided without this information. Typically, under the specific identification method, the exact cost of items sold and remaining would be identified. For weighted average, the average cost per unit is calculated by dividing the total cost of goods available for sale by the total units available for sale, which is then applied to the units sold and the ending inventory accordingly. FIFO (First-In, First-Out) assumes the oldest items are sold first, so the ending inventory is costed at the most recent prices. Conversely, LIFO (Last-In, First-Out) assumes the newest items are sold first, leaving the oldest costs for ending inventory. Without the missing detailed cost data, it is not feasible to provide the numerical calculations required to complete the task outlined in the student's question.