Home Office Depreciation Percentage?

This is regarding Form 8829, Part III, Line 41: Depreciation percentage.

 

According to the IRS Form 8829 instructions, the percentage for my home office should be 2.564% because I first used the home for business after May 12, 1993 and before 2020.

 

After entering all the data into the 2021 TurboTax Home & Business, this particular line shows the percentage of 3.6364%. I couldn't figure out why this is the case. Is this a bug in software?

 

Regards,

Joseph