Product Variation Deduct Multiple Stock

Hi there,

I am trying to create a product variation that will deduct 10 from the total product stock available.

For example, an individual item will cost $90, however if the variable is selected (Table for 10), it will cost $900.00 and deduct 10 from the overall stock.

Is there an easy way to do this with WooCommerce’s default functionality? Or are there any extensions available?

Kind regards,
J