Typically - as with this pattern - Kristi will have listed the amount of floss needed for the pattern below. You'll see that some colours require more than one skein - for example in this pattern, black brown needs two skeins - and when that is the case it's listed that way.

Thank you. That makes sense. I didn't scroll down enough to see the difference in the numbers (such as the black brown you pointed out). I appreciate the reply Craftydivakat :)