Incorrect steps data - possible rounding bug?

Hello all, this is a minor issue - but it still bugs me. If I go to the steps summary on my phone (in Garmin Connect) and I look at weekly summary, the data in the summary shows a different percentage then the detail page.

So I see for example for December 27, 2017 - 6964 steps, 99% of goal is indicated in the weekly summary. My goal for that day was 6960 - and if I click on the day it shows me that I have reached 100%. The watch also shows that I have reached the goal on that day. So how come the weekly summary does not?

This small difference in % is consistently there, on most days there seems to be a difference of 1% (the summary showing 1% less than the daily detail).

Any ideas? Do you also experience this?