Profile averages seem off

[NBtarheel33]

On the profile page, I believe there may be an error in how some of the averages are calculated.

I have 97,726 total miles tracked and 324 total fuel-ups. This would seem to imply an average of 97,726/324 = 301.6 miles per fuel-up, yet the profile page is quoting an average of 303.5 miles per fuel-up. Since 97,726/322 is roughly 303.5, it looks as though Fuelly may be using a fuel-up count that is short by two in calculating the average fuel-up distance.

Also, the average price per gallon figure differs from what I have in my spreadsheet. My calculation is based on total spent divided by total number of gallons purchased (i.e. $8,052.23/3,067.492 = $2.6250/gal), while Fuelly is reporting an average of $2.64/gal. Perhaps this is because Fuelly simply averages the prices of each fuel-up, rather than keeping a true running tally as I have in my spreadsheet?

Note that the average *total* price per fuel-up *is* correct. I have $8,052.23/324 = $24.85, which is what my profile page is reporting as well.

Anyway, I was just curious about what was happening here. As always, thanks for all your work on the site!