Sold rental property in 2022, asks for land sale price, anything I put in jacks up my taxes by a fortune plus don't know answer

Sold rental property in 2022, never lived in it, only rented it. Put in purchase price, sales price, get certain tax obligation. Asks for 'land sales price' which I don't know how to assess. Plus any number I play with (based on old property tax ratios or other figures) and the owed taxes go up times 30!!!

 

Makes no sense and can't submit without it or get errors.

Have original ratios when set it up in 2021 as a rental but property up about 50% in the year and a day we've owned, so no clue on what it is now.

 

Help!!!