It's the AOV for the same period, but the values extracted last week and the values extracted this week are slightly different.
Here's why the AOV changes subtly:
The formula is SUM(SALES) / ORDER and is calculated based on ORDER information. ORDER information whose ORDER creation date or update date has changed up to D-7 is updated. Therefore, the AOV value may fluctuate due to changes in ORDER content over the past 7 days.