WooCommerce Services adds the weight of empty box and weight of filled box

When I go to WooCommerce > Shipping > WooCommerce Services and add a package, it asks me for the weight of the empty package and then the max weight of package and contents.

Then, when I go to WooCommerce > Orders, click on an order, and click ‘Create Shipping Label,’ it adds the two numbers together.

The max weight should be the max weight which is what I entered (8.2 oz). What am I misunderstanding here and how can I make it so that the total weight is reflected as what I entered in the first image above?