Estimated Mileage and costs

Here you go guys.
Some of this might not be too accurate.
I added 100 miles ( LEWAY miles )
I used my dads old address in Hyde Park as a starting point and I used a sample address in Denton to see the Ideal Mileage.
Please take a look and feel free to correct me.

Austin to Denton - Total Estimated Time: 3 hours 42 minutes
Total Estimated Distance: 223.76 miles

DENTON TO KANSAS CITY - Total Estimated Time: 7 hours 56 minutes
Total Estimated Distance: 512.86 miles

KANSAS CITY TO DAVENPORT -Total Estimated Time: 5 hours 39 minutes
Total Estimated Distance: 366.69 miles


DAVENPORT TO UPTOWN LOUNGE CHICAGO -Total Estimated Time: 3 hours 17 minutes
Total Estimated Distance: 180.54 miles


UPTOWN LOUNGE to BROWN RICE IN CHICAGO - Total Estimated Time: 9 minutes
Total Estimated Distance: 3.10 miles

BROWN RICE TO THE TOO DAMN EARLY RADIO SHOW- Total Estimated Time: 5 hours 41 minutes
Total Estimated Distance: 338.47 miles

RADIO SHOW TO THE SWAMP -Total Estimated Time: 0.90 minutes
Total Estimated Distance: 0.29 miles

THE SWAMP to the BUCCANEER ( Memphis ) - Total Estimated Time: 3 hours 29 minutes
Total Estimated Distance: 216.36 miles

BUCCANEER to SUPER HAPPY FUN LAND (HOUSTON)Total Estimated Time: 9 hours 25 minutes
Total Estimated Distance: 578.71 miles

SHFL to Austin ( test location ( dads old house ) )
Total Estimated Time: 2 hours 51 minutes
Total Estimated Distance: 167.25 miles

Total Mileage ( + 100 extra miles ) = 2688.03

Raw Mileage : 2588.03
Average Gas Cost : 2.15

MPG: About 10
2688.03 / 10 = 268.803
Multiply by Avg. Gas Cost - 2.15
= 577.926 ?
Divided by 10 people = 57.79 a person?