Stardust Furniture Store sells $$low end$$ furniture and uses the installment method for revenue recognition. Its year$-$end is December $31.$ It shows the following data for January:

Sales of $$9,180$ with a $50\%$ markup.

Sales terms: No down payment in January, no interest and $6$ easy monthly payments starting in February.

Required $1$: Assuming no other transaction happened, what revenue is recognized in January? $

Required $2$: Assuming no other transaction happened, what revenue is recognized in February? $

Required $3$: Assuming no other transaction happened, what cost of goods sold is recognized in March? $

Required $4$: Assuming no other transaction happened, what is the Gross Margin of April? $