@Valerie283 @Alexandra316
Valerie, the fee that will charged does fluctuate as a result of currency conversions but that should not have been an issue enquiring about your own listing here in Australia, but my listing does the same thing and fluctuate a dollar either side of my set amount of $85 AU.......most always, a dollar below!
Valerie, the other thing that will affect what you will receive, since July 1st 2017 Airbnb in Australia have been required to pay a VAT of 10% on their service fee charge and although that should only add 36 cents to a $120 booking Airbnb do add this to their service charge and this could also be a contributing factor. It means less that you will receive.
The problem is, these amounts are so small that it seems pointless making an issue of it and it is highly probable that you will not get a relevant answer if you do query it.
If it is a major concern I would lift your nightly listing amount by $1 to take care of these fluctuations. I don't think many prospective guests will be swayed by 1 dollar.
I am sorry Valerie it sounds vague but I can't give you a better answer.
How are you going up there in the hills? Not too many bushfire issues with this heat I hope!!
Cheers.......Rob