\begin{tabular}{lrrrrr} Date & Units & Cost & \multicolumn{2}{c}{ Cost } & \multicolumn{2}{c}{ in Units } \\ 1-Jun Beginning inventory & 50 & 1 & 50 & 50 \\ 6-Jun Purchase & 50 & 1.2 & 60 & 100 \\ 10-Jun Sales & 30 & & & 70 \\ 13-Jun Purchase & 150 & 1.4 & 210 & 220 \\ 20-Jun Purchase & 100 & 1.6 & 160 & 320 \\ 25-Jun Purchase & 150 & 1.8 & 270 & 470 \\ 30-Jun Sales & 240 & & & 230 \end{tabular} FIFO Periodic System COGSEndingInventory$$ Average Cost Periodic System COGSEndingInventory$$ FIFO Perpetual System COGSEndingInventory$$ Average Cost Perpetual System COGSEndingInventory$$