A programmer is writing a system for a courier company and creates the following subprogram:

function calculateFee(parcelWeight, distanceMiles)
    basePrice = parcelWeight * 1.50
    if distanceMiles > 50 then
        totalFee = basePrice + 10.00
    else
        totalFee = basePrice
    endif
    return totalFee
endfunction

Give the name of one parameter used in the calculateFee subprogram.