C = Coach, R = Roomette, FB = Family Bedroom and B = Bedroom. If you see a BC, that's the surcharge for Business Class seating (nicer than plain old Coach). The list of 5 or 6 numbers below each heading (i.e., R) are the prices levels for that heading. Folks here call them buckets, for some reason. The price level for each day of travel is determined by a process called "yield management" which is sort of like Supply & Demand.I get the "C" = coach and "R" = reserved? Yes? Beyond that I have no idea what FB and B mean. And why a list of all those number in each square?
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