OK how about a 4 night break:
Going Out: 26/07/2010 11:55hrs
Tampere - Malaga
1 x Adult 143.99 EUR
Taxes/Fees 20.98 EUR
1 x Web Check in 5.00 EUR
Coming Back: 30/07/2010 06:00hrs
Malaga - Tampere
1 x Adult 143.99 EUR
Taxes/Fees 31.54 EUR
1 x Web Check in 5.00 EUR
Total Cost 350.50 EUR
What percentage of passengers use this duration? Focus on the point.