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a$)$ Fill in the missing numbers in the inventory schedule using the weighted$-$average cost inventory valuation method. This company uses the perpetual inventory system.

Do not enter dollar signs or commas in the input boxes.

Round all answers to $2$ decimal places. All unit cost calculations should be rounded to $2$ decimal places as well.

$\backslash$table$[[$Transaction$,$Description,Inventory Schedule,Balance$],[$Purchases$,$Sales$],[$Quantity$,$Amount,Quantity,Amount,Quantity Amount$],[,$Opening Balance,$*,$:$.,,.,0,$$$0$