Most of this is wrong. I’ve been a hiring manager for over 25 years and let me tell you:
1. Phony numbers and percentages can be made up and are impossible to verify. I ignore them as inflated at best, lies at worst.
2. If you have been working more than a few years, it is IMPOSSIBLE to put the information you suggest in a 1 page resume and nearly impossible in a 2 pager.
This information in this article is the same impractical pablum spouted by so-called “resume experts” for many 30 years. Ignore it!
The resume that gets my attention is one that shows the applicant has the relevant education/training and has worked in the same or similar field for a number of years. Oh, and spelling and grammar must be correct.