Why do star ratings go down despite not selling

[DesDesVintage]

Hello- happy Sunday

My vintage shop has barely had any orders this year. I just noticed despite having no new reviews or much activity, the 5 star has gone down. I get it is an average when you are selling, but if there is not much activity/sale in a shop, why should the average go down? Just because you are not selling doesn’t mean you are a bad seller or provide bad customer service or ship late!  I am not selling because my Etsy traffic has just tanked by 80%, that is it. 

Has anyone experienced the ratings going down when no sales are happening and gone up when selling again? Thx 

[catfluff]

star seller is determined by the past 3 months so if you haven't been selling much  it will go down with no new reviews. Not really fair  like you said its not that you are a bad seller just not selling a lot.

[JJewellerySuppliesUK]

The review stars expire after 12 months so it is likely that some 5 stars fell out of the equation and you must already have some lower than 5 in the past 12 months so it has recalculated to less than 5 overall. 

[BootifulLabels · Accepted solution]

If you mean the star rating on your shopfront, that is calculated on the past 365 days only.  Reviews drop out of the calculation after that period.

If you mean your Star Seller rating, that is only on the current 3 month assessment period, IE July, Aug, Sept.

[DesDesVintage]

Thanks everyone, I meant the rating and didn’t know it is only valid for 1 year.