While it’s hard to pencil out a company overheads because we are not employed to that company, there is some factors that is obviously common. Example how many raft trips one captain gets per day which would be base on the total number of captains employed. The cost to move the rafts up back to the top of the river etc. There is so many factors that only the heads would have knowledge of.
The costs in jamaica are possibly high base on how often jobs are available. Cost of living possibly high also etc. In summary the best thing to do is not to devalue their jobs and businesses but try to negotiate or find something more affordable.