Post-money valuation and ownership

You founded your company with 0.053 million and received 1 million shares.
You later sold 0.75 million shares to angel investors.
Now a VC wants to invest 3 million in exchange for 2 million shares.

1. What is the post-money valuation (in million)?
2. What percentage of the firm will the VC own?
3. What is the value of your shares (in million)?