Table A-6 is on page 72 of Publication 946. See the attached link:
https://www.irs.gov/pub/irs-pdf/p946.pdf
If you notice the property is depreciation based on the month placed in service and using a mid-month convention. If you did not use the correct month, your calculation could easily be $50 off when attempting to recalculate.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
