Using your numbers and an in service date of 6/28/2021, I show the cost basis of the structure (cost minus cost of land) to be $138,026.14 .
I get a first year depreciation amount of $2,719.11 by using the worksheet and table A-6 in IRS Pub 946.
The TTX program may or may not have that "exact" figure, because of IRS rounding requirements to the nearest dollar amount. So if the program shows your first year depreciation within $5 either side of $2,719, then you're spot on.
