Cullumber Inc. uses a periodic inventory system. Its records show the following for the month of May, in which 70 units were sold. \begin{tabular}{|c|c|c|c|c|} \hline Date & Explanation & Units & Unit Cost & Total Cost \\ \hline May 1 & Inventory & 33 & $10 & $330 \\ \hline 15 & Purchase & 27 & 11 & 297 \\ \hline \multirow[t]{2}{*}{24} & Purchase & 40 & 12 & 480 \\ \hline & Total & 100 & & $1,107 \\ \hline \end{tabular} Calculate the ending inventory at May 31 using the FIFO, LIFO and average-cost methods. (Round answers to 0 decimal places, g. 125.)