HotFoot Shoes would like to maintain its cash account at a minimum level of $$28,000,$ but expects the standard deviation in net daily cash flows to be $$4,300,$ the effective annual rate on marketable securities to be $6\mathrm{.}8$ percent per year, and the trading cost per sale or purchase of marketable securities to be $$230$ per transaction.

What will be its optimal cash return point? $($Use $365$ days a year. Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$