@Catherine2916
As far as I am aware you can't. Hosts change their prices all the time. I don't think that's then advertised to guests. Guests just see the new price, not that it's been reduced. However, there is (or at least used to be) a thing that would pop up on the calendar from time to time saying you could do a sort of special offer for certain dates. I haven't seen it that often and only used it once ages ago, and now haven't seen it for a while. When I did use it, turns out the guest had no idea that they had gotten a discount, so I thought it was pretty useless.