The revenues for companies in the window cleaning market are as follows: 1) Sunnyside - $120,000; 2) White Shark - $360,000; 3) Paneless Perfection - $179,000; 4) Squeegies - $237,000; 5) Precision Cleaning - $419,000; 6) Glass First - $89,000. What is the market share of the company with the greatest revenue in this list in percent to one decimal place?