GG Industries was founded by Tae-Yeon Kim, and Jason Cheng. They received $300,000 in convertible debt financing from TechStars, with zero interest, a 20% discount, and a $2,000,000 cap. Exactly one year, later, GG Industries raised $4,000,000 in a seed round financing, selling shares representing 50% of the total stock outstanding. How many shares of stock did TechStars get for their convertible debt? The stock price was $1.00 per share