Tiger Golf Accessories sells golf shoes, gloves, and a laser$-$guided range$-$finder that measures distance. Shown below are unit cost and sales data. Pairs of Shoes Pairs of Gloves Range$-$ Finder Unit sales price $$100$ $$30$ $$260$ Unit variable costs $6010200$ Unit contribution margin $$40$ $$20$ $$60$ Sales mix $35\%55\%10\%$ Fixed costs are $$620,000.$ Calculate weighted$-$average unit contribution margin