Kingbird Company sells discounted shoes to the fashion$-$oriented consumer. The following schedule relates to the company's inventory for the month of March:

$\backslash$table$[[,,,$Cost,Sales$],[$March $1,$Beginning inventory,$3,780$ units,$$115,290,],[7,$Purchase,$1,260$ units,$50,400,],[8,$Purchase,$1,890$ units,$94,500,],[15,$Sale,$4,410$ units,$$396,900,],[20,$Sale,$882$ units,,$],[25,$Purchase,$630$ units,$19,530,],[27,$Sale,$1,512$ units,,$90,720]]$

Kingbird Company uses the periodic inventory system.

$($a$)$

Calculate Kingbird Company's cost of goods sold, gross margin, and ending inventory using:

i$.$ FIFO

ii$.$ Weighted$-$average $($Round calculations for cost per unit to $2$ decimal places, e$.$g$.10\mathrm{.}52.)$

Cost of Goods Sold

Gross Margin

Ending Inventory

i$.$ FIFO

ii$.$ Weighted$-$average