$[$The following information applies to the questians displayed below.$]$

Trey Monson starts a merchandising business on December $1$ and enters into the following three inventory purchases. Monson uses a perpetual inventory system. Also, on December $15.$ Monson sells $15$ units for $$27$ each.

Purchases on December?

Purchases on Deceaber $14$

Purchases on Decenber $21$

$10$ units e $$13\mathrm{.}00$ cost

$20$ units e $$19\mathrm{.}00$ cost

$15$ units if $$21\mathrm{.}00$ cost

Determine the costs assigned to ending inventory when costs are assigned based on the weighted average method. $($Round your per unit costs to $2$ decimal places.$)$

$\backslash$table$[[$Date$,$Welahted Average$-$Perpetual:,Inventory Balances$],[$Gaods purchased,Cost of Goods Sold$],[\backslash$table$[[$al of$],[$units$]],$Cost per unit,Inventory Value,$\backslash$table$[[$It of$],[$units$],[$sold$]],\backslash$table$[[$Cost per$],[$unit$]],\backslash$table$[[$Cost of Goods$],[$Soid$]],$# of units,Cost per unit,$\backslash$table$[[$Inventory$],[$Balance$]]],[$December $7,],[$December $14],[,,,,,,,,,],[$Avarage cosi$.$December $14],[$December $15],[$December $21],[],[$Averape cost Detcert ber $21],[$Totals$,,,,,,,,,]]$