REI sells snowboards. Assume the following information relates to REI's purchases of snowboards during September $.$ During the same month, $103$ snowboards were sold. DateExplanation UnitsUnit CostTotal Cost Sept. $1$Inventory $14$ $$102$ $$1,428$ Sept. $12$ Purchases $451054,725$ Sept. $19$ Purchases $491065,194$ Sept. $26$Purchases $251072,675$ Totals$133$$$14,022$ Additional data regarding the company's sales of snowboards are provided below. Assume that REI uses a perpetual inventory system. Date Units Sept. $5$ Sale $9$ Sept. $16$Sale $49$ Sept. $29$ Sale$45$ Totals$103$ Calculate the weighted$-$average unit cost. $($Round answers to $3$ decimal places, e$.$g$.5\mathrm{.}125.)$

September $1$$ $102$

September $5,$$ $102$

September $12$ $ $?$

September $16$$ $?$

September $19$$ $?$

September $26$$ $?$

September $29$$ $?$