You can of course advertise at any price you want. But, if the price you calculate this way is too large, no one will rent your house. And, if the price you s

You can of course advertise at any price you want. But, if the price you calculate this way is too large, no one will rent your house. And, if the price you set this way is too low, you're leaving money on the table, which you may or may not be fine with. If the difference is high enough, someone might even pay you the rent you asked for, but then rent it out themselves to someone else for the higher price, and pocket the difference, which you may feel cheated by.