Erm, how do you work that out from:
The cost is $45 including tax for the 25-minute ride and the carriage can hold up to four adults, or three adults and two small children (children under 18 must be accompanied by an adult).
To clarify (which I didn't think needed doing) it is
$45 per carriage ride, not per person.
Edit: Just seen your later message. I can't currently get to that page on the WDW website at moment (or indeed any of the pages on the US site at all) as the international forced-redirect is totally messed up and they don't seem terribly interested in fixing it just now.

However it wouldn't be the first time that something was wrong on the Disney site; I've been saying for many years that the Colonel's Cotton Mill nomenclature went away along with Dixie Landings in 2001, but even according to the new website, when I could see it, the main building is still called that.
Andre