Veggie Burgers, Inc. would like to maintain its cash account at a minimum level of $$257,000$ but expects the standard deviation in net daily cash flows to be $$13,200,$ the effective annual rate on marketable securities to be $3\mathrm{.}5$ percent per year, and the trading cost per sale or purchase of marketable securities to be $$33\mathrm{.}50$ per transaction.

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

Optimal upper cash limit