I imagine 1% of Google is well more than 15.8% of Bing :)
Yeah, 0.03*1.16 is still 3% to a close approximation.
The graph showing the deviation from each search engine's 100% baseline is kinda telling considering Bing is all over the place with it actually seeing some traffic, and Google is a consistent up-and-down shape that doesn't seem affected at all by whatever is happening with Bing.
And the title is: "OpenAI tech gives Microsoft's Bing a boost in search battle with Google".