[Enhancement] Provide ability to show a percent % of keywords found relative to the total amount of text in the Keyword Density Check

[Pcosta88]

We currently output the keyword density check we output a number.

User's may prefer to see a percent. This is another data point they can use to help gauge the SEO of the post. We do not need to replace the number, we can show both the % and the raw number

Therefore, we should provide ability to show a percent % of keywords found relative to the text in the Keyword Density Check

[Pcosta88]

Please inform the customer of conversation # 495918 when this conversation has been closed.

[Djennez]

Please inform the customer of conversation # 496817 when this conversation has been closed.