Sand Company's inventory balances for May are given below: \begin{tabular}{lcc} & May 1 & May 31 \\ \hline Inventory & $66,000 & ? \end{tabular} Sand Company reported the following account balances for May: purchase returns ............... $14,000 cost of goods sold .............. $78,000 freight-in $22,000 purchases . . .................. $93,000 freight-out ................. \$17, 000 sales returns & allowances .$26,000 purchase discounts $32,000 Calculate Sand Company's inventory balance at May 31