in 2010 you start a small business with a half a million dollars, you give yoursekf half a million shares for your investment and you own100% of the company. in 2014 an investor wishes to invest in your company. This woukd be your series B financing. She agrees to buy 0.25 million shares at the price of $4 per share. In 2017 you have a series C financing round, where a group of investors invrsted 5 million in exchange for 0.5 million shares

what is your ownership share in the firm in 2017 after the series C investment?