Percentage by weight

[ennogs]

How do you work out percentage by weight?

I have bought some ice cream stabilizer. It is a powder. On the instructions for the ice cream stabilizer, it says to use 0.4% by weight.

if I am making 600ml of ice cream how many grams of ice cream stabilizer powder do I need?

Thanks.

[Math Tutor]

You need
[tex]600 * \frac{0.4}{100}=6*0.4=2.4[/tex] grams