Per IRS Pub 946 at https://www.irs.gov/pub/irs-pdf/p946.pdf table A-5 on page 71 is used since the asset was placed in service in the 4th quarter of 2017. Since 2022 is the 6th year, row 6 applies. Under 7 year property that's 8.73% times the cost basis of $14,450 which is $1261.48. Since the program rounds up to the next dollar that makes your 2022 depreciation $1262.00. The program is correct. So if there's a bug anywhere, it's in all the on-line calculators you are using, which is really no surprise.
