Ski trip cost- are we subsidizing “host “ family

Shared costs:
Accommodation: 4k total Ski lift pass: 7 at 300 each = 2100 ( mum is not skiing) Total cost: 6100
The host family just told us the cost is 1640 for our son. I asked for the breakdown( we were only given total figure). It looks like they have added up the costs and divided by 5
Aibu to say this is not fair and our cost is around 1050( accommodation divided by 8 and we pay 300 for ski lift ) and we and the other kids should not be subsidizing the “host” family?

Surely accommodation divided by 8 is 500 plus ski pass at 300 equals 800 total?

I’ve no idea how they or you have worked it out.
But arguing about the cost will be tricky, especially if they have already booked and presumably your child is a good friend and keen to go. Good luck.

What's the rooming arrangements?

I'd normally expect the costs to be divided by rooms (then by occupants) and then ski passes (adult/concession) and ski hire/carriage to be borne individually

FWIW I've just paid about 1390 for a week, sharing a room, including flights, transfers, and ski carriage.

What about travel, food, equipment, etc? Seems to be missing from the total costs, so your math maybe not be correct. I'd ask about it - but starting from needing to understand all the costs rather than guns blazing that you are paying too much (which you might be, but it isn't, yet, clear).

I would question this but very very gently. Agree with pp - what about travel?

What about things like flights, ski/equipment hire, food, transfers - is that all being paid by you separately?

Aibu to say this is not fair and our cost is around 1050( accommodation divided by 8 and we pay 300 for ski lift ) and we and the other kids should not be subsidizing the “host” family? And if we are then they should have told us beforehand?

Have you paid them any money yet? Have they paid for the trip?

If they insist I would withdraw my child from the trip. Don’t pay them a penny.

When you said that "It looks like they have added up the costs and divided by 5" - it's actually worse. £6,100/5 would only be £1,220, Even divided by 4 it should only be £1,525. There must be some other costs in there surely?

I can see why you would think it isn’t fair, but if the parents are supervising 6 teenagers doing a potentially dangerous activity like skiing then it’s not going to be much of a holiday for them (mum isn’t even skiing).

They should have explained the breakdown in costs before booking though.
Have they actually said that they’ve divided by 5 or is that just what you’ve worked out? They might have included other shared costs like food (if it’s self catering), petrol/car hire etc.

YANBU, accomodation should be no more than £500 each. It sounds like they’re taking the piss.

What is the bedroom split?

Does the total £1640 including all food and drink?