@Denise467 A complex question that seems so simple.
Some people use Airbnb as a lifestyle add on so actually quality/type of guest is more important than price. Of course a low price can attract poor guests so even here you should not go too low on price.
Others want to maximise their profit which doesn't necessarily mean revenue and certainly doesn't mean nightly price. A high nightly price may attract slightly fewer bookings but may increase your profit as costs/wear and tear will be lower.
If you are almost fully booked then try a 10% price increase. As long as your booked nights do not drop by more than 10% then in simple terms you are winning
Oh and by the way, for any newbies reading this. If you are anywhere near Airbnb the price tips then you are way too cheap.