[IndyGunFreak]

Now that you mention it, I found that Open Office Spreadsheet has a million different statistical functions. Since I never used it, it almost seems easier to enroll in a community college than to try to figure out how to use it. But, in 5 minutes of playing around, I got it to do the calculations. At this point, my system of napkins and online calculators seems easier, but maybe I should look into this spreadsheet thing.

I was gonna suggest this.

I use Open Office for all sorts of simple mathematical calculations. I also use it to calculate my costs on reloading (per round, per 100, per 1k).

You can do a lot of things w/ modern spread sheet software.