The trays are produced using a material purchased from a supplier for $$\mathrm{.}20$ per ounce. It takes $\mathrm{.}5$ ounces of material to produce one tray. To avoid material stock$-$outs, Josie maintains ending raw materials inventory equal to $20\%$ of the following quarter's production needs. Materials inventory at the beginning of $2020$ should be calculated from the $2019$ balance sheet. The cost of beginning materials inventory is expected to be $$0\mathrm{.}20$ per ounce.