There is math and then there is startup math. For many entrepreneurs this includes evaluating an angel or seed round investment that requires an option pool.

I created this handy Google Spreadsheet to help you do the math for this typical situation:

• The startup is founder held before the round.
• The round requires an option pool and the pool needs to be created before the investment happens. (i.e., in the pre-money.)

Let me know what you think. Always looking to improve it.