Persuasion: What’s the BEST way to say the Pricing?

When saying the price, Say for example:

β€œMy price is $500/hour, but if this is too expensive for you, and I can perfectly understand it if it’s too much for you. However, I can’t accept less, but just let me know and say to me β€œno”

The β€œJust let me know and say to me no” increases dramatically the chance that the buyer will actually buy it.