This actually varies. Based on the Help Center article, the price is determine by the demand of your area, listing's feature, location, amenities, booking history, and availability.
What I would try to do is...
1. Make sure you're using Google Chrome and had cleared off your cache, cookies, and history.
2. Change the minimum price and maximum price again.
Hopefully this would change your calendar.
If you still encounter the same issue, try to check the prices tomorrow because with Smart Pricing, the prices on your calendar changes on a daily basis.
Good luck to your hosting experience 🙂
Love,
Helena V.