Definitely. It looks like he took the hard disk drive's power (1.875W) and divided it by the SSD's power (0.833W). 1.875/0.833 = 2.25. That number implied an English statement like "the hard disk drive consumes 2.25x as much power as the SSD" or (if you divide the SSD by the hard disk drive) "the SSD consumes 44% of the hard disk drive's power".Umm... someone is definitely math-challenged.
If you want to write "x saves y% over z", then you need to compute the difference between the two (z - x) and divide that by the baseline (what you're saving over, in this case z). With the numbers from the article, that means (1.875 - 0.833)/1.875 = 1.042/1.875 = 0.556. The SSD saves more than 55% over the hard disk drive, not "more than 225%".