83.4% of 500 is exactly 417. The article is also exact about these numbers. No need to add "around".
Edit: Why was the title editorialized to begin with?
Edit2: looks like the title was updated to the original. Thanks.
"If the title contains a gratuitous number or number + adjective, we'd appreciate it if you'd crop it. E.g. translate "10 Ways To Do X" to "How To Do X," and "14 Amazing Ys" to "Ys." Exception: when the number is meaningful, e.g. "The 5 Platonic Solids."
Otherwise please use the original title, unless it is misleading or linkbait; don't editorialize."
This is directly against the guidelines and how article titles should be submitted. Editorialization of titles is heavily discouraged and here it even says something the article doesn't. Not at all a nitpick imho.