It's possible yes. But I don't think a black/white answer applies here and you can't really quantify it in advance. SEO is very much a test & learn approach. Yoast keyword tools are pretty old school in the sense that they tend to simplify what good SEO content looks like by not giving any insight or recommendations around things like topic, semantic keywords or a knowledge graph. Focusing on keyword % is really the last thing you should be doing, if at all, it is a result of not a cause of good content.
You're better to focus on what sub-topics exist within your content and making sure you encapsulate beneficial and inter-related (to users & google) sub-topics. Also, the word count should not be a target, just aim to explain the topic and all it's nested sub-topics etc. If it takes 300 words to do that - great, if it takes 3000 words great. Don't fluff up a 500 word deep article into a 1500 word piece, otherwise or anyone who reads it will instantly be put off and no-one will consider linking to it.
Clearscope (not affiliated with them, just like the tool) has an ok summary around how to do an approach like this https://www.clearscope.io/content-seo