$2\mathrm{.}2\mathrm{.}2$ Calculate the value of closing inventory as at $31$ December $2023,$ if the weighted average cost method is used. $($Express the weighted average cost per unit to the nearest cent$)$

INFORMATION

$(3$n

Elna Suppliers had the following inventory of retaining blocks on $01$ January $2023,$ the start o financial year:

$\backslash$table$[[$Quantity$,$Purchase price per block,Carriage on purchases per blo$],[500,$R$38,$R$2]]$

During $2023$ the following purchases$/$returns were made:

$1350$ blocks were purchased at R$40$ each on $31$ March $2023.$ Carriage amounted to R$2$ per unit $250$ blocks that were purchased on $31$ March $2023$ were returned to the supplier a day later. A refund obtained on the carriage.

$400$ blocks were purchased at R$42$ each on $31$ October $2023.$ Carriage amounted to R$3$ per unit.

Note: Carriage on purchases are not included in the purchase prices.

Sales during $2023$:

During the year $1400$ blocks were sold. $1000$ blocks were sold at $R70$ each and the balance was sold at R$8$ each.