$\backslash$table$[[$Date$,$Activities,Units Acquired at Cost,Units Sold at Retail$],[$May $1,$Beginning inventory,$150$ units @ $$10=$$$1,500,],[$May $5,$Purchase,$220$ units $$$$12=$$$2,640,],[$May $10,$Sales,,$],[$May $15,$Purchase,$100$ units @$$13=$$$1,300,140$ units @$$20$