This formula is based on departure from campus and return to campus mileage.
Gas Reimbursement for Club Activities:
Number of vehicles (minimum of 3 persons/vehicle) * Miles traveled / vehicle avg. miles per gallon (estimate:20) * avg. cost of a gallon of gas.
Thus the formula works as such:
Traveled 250 miles divided by 20 mpg = 12.50 gallons * $3.50/gallon
You would be reimbursed $43.75