During 2012,a Company Sells 500 Units of Inventory for $90

During 2012,a company sells 500 units of inventory for $90 each.The company has the following inventory purchase transactions for 2012:
$$\begin{array} { l l c r c } \text { Date } & { \begin{array} { c } \text { Transaction }\end{array} } & \begin{array} { c } \text { Number } \\\text { of Units }\end{array} & \begin{array} { r } \text { Unit } \\\text { Cost }\end{array} & \begin{array} { c } \text { Total } \\\text { Cost }\end{array} \\\text { Jan. 1 } & \text { Beginning inventory } & 80 & \$ 79 & \$ 6,320 \\\text { May 5 } & \text { Purchase } & 270 & 80 & 21,600 \\\text { Nov. 3 } & \text { Purchase } & 190 & 82 & 15,580 \\\hline& & 540 & & \$ 43,500 \\\hline\end{array}$$
Calculate cost of goods sold and ending inventory for 2012 assuming the company uses weighted-average cost with a periodic inventory system (round weighted-average unit cost to four decimals if necessary).