Many sellers have mentioned that their stats have or haven’t changed and they don’t understand why. This is especially true near each evaluation day when everyone is nervous.
You must remember that your stats are measured over a 60 day period, so stats CAN change every single day. This includes completion rate, on-time delivery, rating, response rate, etc.
If you have an order that was canceled or late 55 days ago, that order won’t “drop off” of your 60 day count until after the 60 days mark. If you have a new order that you deliver on-time (or late) that will also change your stats. Since time continues to pass even if you have no new orders or deliveries, your analytics might appear to stay steady or to change suddenly even though nothing else has changed for 5 days. With a 60 day rolling counter, this is to be expected.
There is math behind it and you can find ways to calculate it if you have some skill in this area. Some sellers have posted various formulas to help you do that, and I encourage any of them to post their formulas in this thread while it’s open.
If you feel strongly that your stats are changing and shouldn’t be or are not changing and should be, contact Customer Support. Chances are they are actually correct in most cases.