The first SEO myth I referred to is Key Word Density. How important is Key Word Density?
IMHO I don’t think it matters. One exception. If you have 40 words on a page and 20 of them are your keywords, then I think you have problems.
In my early days of looking at SEO for some reason I came across a lot of free tool sites that offered keyword density checkers. All of them if I remember correctly offered ranges of density.
The suggested density was somewhere between 4% and 10%.
When I checked a page none of them returned the same results. Why not? Because no one knows exactly what keyword density is IMHO. No one knows exactly what importance the SEs place on keyword density.
Frankly no one knows how to accurately figure key word density
A lot of people have opinions. But, they are just that. Opinions.
Keyword density may be important, but no one can give you an exact percentage for any page or any industry. Further more, no one can really tell you how to calculate keyword density.
Instead of wasting your time in trying to figure out keyword density, why not write a web page that makes sense to your visitors.
IMHO if a page is written for your visitors, the keyword density will probably be fine.