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In its first month of operations, Literacy for the Illiterate opened a new bookstore and bought

merchandise in the following order: $(1)220$ units at $$6$ on January $1,(2)490$ units at $$7$ on January $8,$ and

$(3)790$ units at $$8$ on January $29.$

Assuming $950$ units are on hand at the end of the month, calculate the cost of goods available for sale, ending inventory,

and cost of goods sold under weighted average cost flow assumptions. Assume a periodic inventory system is used.

$($Round "Cost per Unit" to $2$ decimal places.$)$