Zelda's Zipper Inc. has 3mm shares of stock outstanding, spread among 60 shareholders who are all friends or family of Zelda. Its trailing twelve months revenue was $6mm and Net Income was $2mm. Last year Zelda invested in 3D printing technology for her zippers, so now has $1mm in Property, Plant and Equipment on her balance sheet, partly financed by a $500,000 loan from Chase Bank, Zelda recently hired an accounting firm to do a valuation of the company's equity in case she decides to issue additional stock to raise capital; valuation came in at $18mm. What is Zelda's Zipper's TTM P/E ratio?