QUESTION $3$

Mikayla Sdn$.$ Bhd$.$ uses the periodic inventory method and had the following inventory information available:

$\backslash$table$[[$Date$,$Description,Units,Unit cost,$\backslash$table$[[$Total$],[$cost$/$sales$]]],[$September $1,\backslash$table$[[$Beginning$],[$inventory$]],400,$RM $6\mathrm{.}00,$RM $2,400],[$September $3,$Purchase,$500,$RM $7\mathrm{.}10,$RM $3,550],[$September $5,$Purchase,$600,$RM $7\mathrm{.}50,$RM $4,500],[$September $12,$Purchase,$300,$RM $7\mathrm{.}35,$RM $2,205],[$September $18,$Purchase,$1,200,$RM $8\mathrm{.}00,$RM $9,600],[$September $20,$Sales,$700,$RM $10\mathrm{.}00,$RM $7,000],[$September $25,$Sales,$350,$RM $11\mathrm{.}00,$RM $3,850],[$September $30,$Sales,$250,$RM $12\mathrm{.}00,$RM $3,000]]$

Required:

Using Weighted Average Method in Periodic Inventory System, calculate:

$($a$)$ The ending inventory in unit.

$(2$ marks$)$

$($b$)$ The ending inventory in RM$.$

$(4$ marks$)$

$($c$)$ Cost of goods sold $($COGS$).$

$(2$ marks$)$

$($d$)$ Gross Profit.

$(2$ marks$)$