Hi @Laura8194
You mean you're considering changing to a fixed fee for up to 2 guests, and then charging per person thereafter?
The impact on rank will depend on the fixed price and per-person charge you choose - lower price will rank higher on average, and price is (unfortunately for our income!) a huge factor in the algorithm.
At the moment your entire listing price makes you most visible for 4 guests and least visible for 1.
The best way to track the effect of any price changes (and experiment with other variables like free cancellation) is to find your listing in private mode and to change one thing at a time and see how it moves up. Do this for 2, 3 and 4 guests in turn, until you're happy with your position and the sacrifices you make.
One practical disadvantage of a per-guest charge is that you may feel the need to check up more to see whether they're declaring all the guests. Many hosts complain here about unpaid extra guests and the fights that follow. I prefer the entire listing price to avoid the drama and to keep things simple, but you need to see what works best for you!