ii. Weighted-average (Round calculations for cost per unit to 2 decimal places, e.g. 10.52.) \begin{tabular}{rlrrr} \hline March 1 & Beginning inventory & 2,700 units & \multicolumn{1}{c}{ Cost } & Sales \\ \hline 7 & Purchase & 900 units & 36,000 & \\ 8 & Purchase & 1,350 units & 67,500 & \\ 15 & Sale & 3,150 units & & $283,500 \\ 20 & Sale & 630 units & & 47,250 \\ 25 & Purchase & 450 units & 13,950 & \\ 27 & Sale & 1,080 units & & 64,800 \end{tabular}