Tiger Golf Accessories sells golf shoes, gloves, and a laser$-$guided range$-$finder that measures distance. Shown below are unit cost and sales data. Sales mix is determined based upon total units sold.

$\backslash$table$[[,\backslash$table$[[$Pairs of$],[$Shoes$]],\backslash$table$[[$Pairs of$],[$Gloves$]],\backslash$table$[[$Range$-],[$Finder$]]],[$Unit selling price,$$100,$$$30,$$$260$