The following activity took place during the calendar year. Fill in the missing spaces in the table assuming the company uses LIFO costing and a perpetual inventory system. \begin{tabular}{lll} Jan. 1 & Inventory & 4,000 units at $40 \\ Apt. 19 & Sale & 2,500 units \\ June 30 & Purchase & 4,500 units at $44 \\ Sept. 2 & Sale & 5,000 units \end{tabular}