You and your cofounders own 300,000 shares of common stock and options to purchase 50,000 additional shares of stock; your Series A investors own 1mm shares of preferred stock convertible into common at a 1.3x conversion ratio; your series B investors own 500,000 shares of preferred stock convertible to common on a 1:1 ratio; your employee option pool has 100,000 authorized but unissued options and your lender has been given warrants to purchase 50,000 shares of your stock with a 10 year expiration date. What is the total number of authorized or issued shares of your company on a fully diluted basis?

Show step-by-step pls. Answer is 2,300,000 shares but how?