@Ori6 , also gut, ich fange auf deutsch an: mir macht es immer Spass andere Unterkuenfte anzuschauen und dann sehen was ich beitragen kann , oder wie ich die Fragen beantworten kann. Betreffs Deiner Unterkunft (ganz prima!) - nur meine persoenliche Meinung:
1.) regarding the room for max. 2 people, I would make it one price, not adding $17 for the second person. reason: the futon bed is rather small, you only have one set of linen to wash, not two. It just looks more generous if you do one price. How about you set your price to 55, instead of 47? half of the time you'd get more when a single person shows up, half of the time (with 2) a bit less, but it all evens out.
2.) when you rent out the whole place: yes, start with base price for two (your own bedroom) then add per person (for the other room). I would not add 22 (as you have now), maybe just 17 , as you have it now for the other room for the extra person? your minimum is for 4 nights, a nice chunk of $$.
Also consider that the base price of $107 is more than double of the single room at $47, so People who look at both of your listings might think that at 107, that already should absorb an extra charge for the other room , and would expect the charge of 107 to be for four. So perhaps you might want to just make one price, for up to 4, and increase the cleaning cost. It's all in what your local market/demand will support.
In any case, for the whole house, your cleaning fee could/should be higher than the cleaning fee just for the extra room. Right now it is the same.
So, nun bin ich fast am Ende... noch ein Tip: vielleicht stelle eine kleine Nachtlampe auf den Nachttisch neben den Betten, manche Leute lesen gern im Bett. Und dann natuerlich Southpark, hehehe!