How Outreach Link Dofollow Ratios Correlate with Organic Visibility

https://www.scribd.com/document/983199401/How-to-Spot-PBN-Footprints-and-Time-Your-Updates-to-Avoid-Ranking-Disasters-132079

If you want the short answer: there is no single "correct" percentage of outreach links that must be dofollow. The long answer is messier, and that’s what this guide is for