We all understand how crucial keywords are to Google. When the words do not appear in the on-page text, it is challenging to rank content for a specific term. The frequency with which a term or phrase appears in relation to the amount of text on the page is referred to as keyword density.
Keyword density is simply not something to be concerned about. You're fine as long as you use the word or phrase a few times, as you would if you weren't aiming for a specific ratio.
Use the keyword in the page title, meta description, and first paragraph. Then, only use it a few more times throughout the copy. Because keyword density is not a ranking factor, there is no ideal percentage of keywords to use.