$\backslash$table$[[$Date$,$Activities,Units Acquired at Cost,$],[,$Beginning,,Units Sold at Retail$],[$April $1,$Inventory,$350$ units @$$18=$$$6,300,],[$April $5,$Purchase,$290$ units @ $$20=$$$5,800,],[$April $9,$Sale,,$500$ units @ $$55],[$April $14,$Purchase,$250$ units @ $$22=$$$5,500,],[\backslash$table$[[$April $20],[$April $30]],$Sale,$240$ units @$$05=$$$600,200$ units @ $$55]]$

Using the charts on the next two pages, answer the following questions:

If the company uses the first $-$in$,$ first$-$out $($FIFO$)$ method and the perpetual inventory system, calculate:

What is the Ending inventory in units and dollars?

what is the Cost of goods sold in units and dollars?

what is the Gross margin?