Creating product recipes to reduce stock by fractions

[WINEKRAFT]

Hello,

I use my SHOPIFY POS store for both retail and in my wine tasting rooms. Is there any functionality that allows me to set up products to reduce by fractions when a glass is sold. For example, if we have 6 bottles in stock and we sell 3 small glasses (1/2 a bottle) then the stock would reduce by 0.5 bottles automatically?

Thanks

WK