Tracking overall performance to date

Trying to keep a simple sheet so I can keep things straight.

The APG column is simply a quick and dirty way to try and normalize the gains with respect to the time the investment was held. The interesting thing there is that GOOG is only the third best "return" when time the position is held is factored into the equation. But it should be noted that as of today...the Dow is still at the same value as when we bought GOOG...and the Nasdaq has gained only about 10% in the same timeframe. Not bad.