Need to find cost basis of a location my business runs out of but leases from owner

HI. My business was robbed early 2024, losing a lot products and gaining damages to display cases, organizers, and door. I'm filling out form 4684, part 1 for businesses. But we rent the location from another person. Do we still fill in the part for cost basis on the form (pg 2)? How do I find the cost basis if we do include it?