Remove a higher quantity from stock according to a variation

Question

i'm gonna sell wine online and i have a little problem, Let's contextualise, i have 1 product with 2 variation :

• 1 Bottle (10$)
• 1 Box = 6 Bottle (58$)

what I would like to see is that when buying a box, the stock of the main product be reduced by 6, and by 1 if he buy a bottle

If you have any plugin (free or premium) or snippets or help i will be very grateful

Thank you in advance

Answer 1

Thank to Akshat who gave me the first step here, after searching more i found this and it's was exactly what i wanted I hope this can help some other