The 3PP or 1PP outcomes were taken after 1 'test' Spin per betting amount and viewed from the Kiosk balance.
Look like you have confused about Calculated Loss. Believe the correct term should be Estimated Cumulated Wagered Amount.
I have earned about 7KPP and my loss is definitely not $7700 or $10990 (calculated from 7000x$1.54) but about $1K (maybe 10%) otherwise will be
I would think this amount is fair comparing to the costs of the cruise fare and is within my budget for this as entertainment.
It would be difficult to calculate %$ loss for Slot Play. Some machines can be good and on few spins could give you big win. Some could last you long hours of play for even a $100. Some could eat and wipe up all you BR within few minutes.
This is unlike Table Games where you can pit against the odds using HA and Strategy etc.
Quote from Kia, he is expert to pro-long his Slot Plays with lesser BR to earn 100TP.