The following information is for the inventory of mini$-$kettles at Ayayai Company Limited for the month of May.

$\backslash$table$[[$Date$,$Transaction,$\backslash$table$[[$Units$],[$In$]],\backslash$table$[[$Unit$],[$Cost$]],$Total,$\backslash$table$[[$Units$],[$Sold$]],\backslash$table$[[$Unit$],[$Price$]],$Total$],[$May $1,$Balance,$140,$$$4\mathrm{.}00,$$$560,,,],[6,$Purchase,$820,4\mathrm{.}10,3,362,,,],[7,$Sale,,,,$350,$$$7\mathrm{.}20,$$$2,520$