Investors & landlords

I am running into a wall. TurboTax is stating my cost basis is $374900.

based on my math, is the land is 46900 and the building 318100. The land is 12.85% and building 87.15%.

what I do next is take 374900 and only calculate the building portion (87.15) = 326725

however. Look at the attachments. The number is off. It’s showing $326715 rather than 326725