A pair of jeans sells for a total of $$65$ retail. The costs that make up that price are $$6\mathrm{.}00$ for production, $$3\mathrm{.}45$ for advertising, $$4\mathrm{.}55$ for distribution, $$5\mathrm{.}05$ for taxes, $$35\mathrm{.}50$ for the retailer, and $$10\mathrm{.}45$ net margin for clothing manufacturer. The $$35\mathrm{.}50$ the retailer receives is known in business as the $\_\_\_\_\_\_\_\_?$