Presented below is information related to Blowfish radios for the Metlock Company for the month of July.

$\backslash$table$[[$Date$,$Transaction,Units In$,$Unit Cost,Total,Units Sold,Selling Price,Total$],[$July $1,$Balance,$200,$$$4\mathrm{.}20,$$$840,,,],[6,$Purchase,$1,600,4\mathrm{.}30,6,880,,,],[7,$Sale,,,$*,600,$$$6\mathrm{.}80,$$$4,080$