Three years ago, you founded your own company. You invested $ 100,000 of your own money and received 5.0 million shares of Series A preferred stock. Your company has since been through three additional rounds of financing.

a. What is the pre-money valuation for the Series D funding round?

b. What is the post-money valuation for the Series D funding round?

c. Assuming that you own only the Series A preferred stock (and that each share of all series of preferred stock is convertible into one share of common stock), what percentage of the firm do you own after the last funding round?