This is rubbish - one of my bugbears
The figure typically quoted is 93% is non-verbal
How can you possibly measure something like this
If you dig into the annals you can find the original paper the work was done on - someone did a brilliant paper called
"93% of communication is non-verbal: How urban myths proliferate" - the author of the original paper agreed and complained how his work had been continuously hijacked by pop-psychologists and business training people.
The actual work came from the famous TV debate between Kenedy and Nixon where Nixon was nervous and sweating and Kenedy looked calm and collected.
Everybody who saw it on TV thought that Kenedy had won whereas anybody who heard it on the radio thought Nixon won.
The numbers related to this.
You simply can't measure a statistic like this it doesn't make sense - it's like adding 3 bananas to 27 jokes