Extra Credit: Cost Co$.$ is considering switching from a $$59$ subscription$/$ year model to not charging a subscription, opening up the store to all shoppers. Currently, they have $1\mathrm{.}7$ million members and each member spends an average of $$892$ dollars per year with a $50\%$ profit margin. Assuming that new customers would have the same purchasing habits as current customers $,$ how many additional customers would cost co need to break even. $($must show work$)(2$ points$)$