How many percent of a 3-in-1 coffee sachet is pure coffee? Can the pure coffee be 2/18 x 100% = 11.1 % of the 3-in-1 coffee only?

On 18 February 2012 I bought a glass bottle of Nescafe Gold Instant Coffee Rich Aroma 50g (Nett Weight). Servings per package: 25. Serving size: 2g.

The servings per package of a 3-in-1 coffee a certain flying creature brand I bought on 20 February 2012 are also 25 with a Serving size per sachet being 18g.

I wonder how many percent of this 18g in the satchet is pure coffee?

Can the pure coffee be 2/18 x 100% = 11.1 % of the 3-in-1 coffee only?

Can anyone tell me?

I wait for your answer!

Thank you.