Squeeze the tube squeeze the customer.

For my own use, I make low sodium and no added sugar tomato sauce. The sauce is based on tomato paste, that usually comes in a small 140g can. The store was out of cans, and I ended up with a 200g tube.
I adjusted the recipe for 200g of paste but found that a 200g tube only produced about 180g after a thorough squeezing. The aluminum tube was stiff and crinkled when squeezed trapping lots of the paste.
After being warned about the problem a tester rolled the tube up from the bottom very tightly and managed to leave only 11g of missing product.

The question is - should the amount shown on a tube be what was put in or what you can get out?

Here is what I found.
Weight of full tube 212g
Weight of tube after thorough squeezing 30g
Weight of paste given up by the 200g tube 182g (212 - 30)
Weight of contents shown on tube 200g
Weight of missing product 18g (200 - 182)
Weight of cleaned tube 13g
Weight of original contents 199g (212 - 13)

The nub of the matter is that it is nigh impossible to get all the product out of a tube.

Tomato sauce recipe.
In a 400g jar place 60g of vinegar and 100g of water.
Add 1/4 teaspoon of MSG optional.
1/4 teaspoon liquid sweetener or to taste.
1 heaped teaspoon of mixed spice.
Then shake the jar to distribute the spice.
Add 1 x 200g tube of tomato paste.
Mix and keep in the refrigerator.
For a paste having a sodium level of 109mg/100g, the final sauce sodium level is around 58mg/100g.