Sunland Golf Accessories sells golf shoes, gloves, and a laser$-$guided range$-$finder that measures distance. Shown below are unit cos 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,$$106,$$$30,$$$245$