I'm very new to SEO. I have been using SEOquake for my keyword density. I just started using Yoast for my SEO and it's telling me a completely different percent than SEOquake is. There's a big difference in the two percents. Question.. How does Google analyze a single pages density?If I'm trying to target a certain percent for my main keyword, should I trust Yoasts's percent, or SEOquake's percent?