关于alamo.cn及alamo.com的价格差异是啥原因？还差的

alamo.com上的价格Midsize SUVEditToyota RAV4 or similar1 Week(s) @725.00$725.002 Day(s) @145.00$290.00Consolidated Facility Chg 3.75/day$33.75Conc Rec 10 Pct (10.0%)$98.23Clark County Tax 2 Pct (2.0%)$19.29Vehicle License Cost 2.00/day$18.00Sales Tax (8.1%)$78.10Gov Fee (10.0%)$96.43Unlimited mileageIncludedTotal Savings- $50.75$1308.05取车alamo.cn上的价格Las Vegas, International Airport
2015年 07月 10日 12:00还车Salt Lake City, International Airport
2015年 07月 19日 12:00租赁期限9 天数汽车Midsize SUV 5-Door/Automatic/Air套餐显示套餐内容Collision Damage Waiver (USA: No Excess)Consolidated Facility Chg 3.75 每天Conc Rec 10 %Clark County Tax 2%Vehicle License Cost 2.00 每天Sales TaxGov FeeUnlimited Mileage附加费用 单程收费$150.00Conc Rec 10 %$15.00Clark County Tax 2%$3.00Sales Tax$12.15Gov Fee$15.00额外费用额外驾驶员$89.91套餐价格（到付）$343.00大约 ¥2,131.06附加费用和额外费用$285.06大约 ¥1,771.08预计总额$628.06大约 ¥3,902.14