Yeah, I don't understand the math as well, but the earlier post and the post below are copy and pasted from my reservation. Is this a good deal already? Vehicle Type: Mini Van - Dodge Caravan or similar VEHICLE PICKUP INFO Date/Time: March 24, 2011 at 10:00 AM Location: SAN FRANCISCO AIRPORT, CA, USA Address: 780 MCDONNELL RD, SFIA SAN FRANCISCO INT'L APO SAN FRANCISCO, CA 94128 UNITED STATES Map Phone: (877) 283-0898 VEHICLE RETURN INFO Date/Time: April 15, 2011 at 10:00 AM Location: SAN FRANCISCO AIRPORT, CA, USA Address: 780 MCDONNELL RD, SFIA SAN FRANCISCO INT'L APO SAN FRANCISCO, CA 94128 UNITED STATES Map Phone: (877) 283-0898 PAYMENT INFO Currency: USD Your Rate: 3 weeks @ $225.00/week with Unlimited Miles; 1 extra day @ $48.99/day with Unlimited Miles CHARGES Estimated Mandatory Charges Rental Time Charge $723.99 APT CONC RECOV FEE (11.11%) $81.34 STATE TAX (9.25%) $75.25 TOURISM SURCHARGE (3.5%) $25.34 TRANSACTION FEE ($20.00 per rental) $20.00 Vehicle License Fee ($0.37 per day) $8.14 Total Estimated Mandatory Charges $934.06 Estimated Grand Total $934.06 Thank you for renting from Thrifty