Yeah, it's wrong. 2 years out of let's say 40 would be 5%. 2/50 is 4%. Also 8 hrs is closer to half one's waking hours so that's either another math error, or

Yeah, it's wrong. 2 years out of let's say 40 would be 5%. 2/50 is 4%. Also 8 hrs is closer to half one's waking hours so that's either another math error, or a mistaken inclusion of the word "waking" (actually he used "awake"), or he works part-time.