Snow$-$Tech inc, sells an Xpert ski that is popular with ski enthusiasts. The following information shows Snow$-$Tech's purchases and sales of Xpert ski during Nowember:

$\backslash$table$[[$Date$,\backslash$table$[[$Explanation$],[$Beginning imeatory$]],\backslash$table$[[$Units$],[33]],$Unit Cost$/$Price$],[$Nov:$,1,,$$$300$