HotLine1:
It's the difference between true power (W) and apparent power (VA). The motor has a power factor of about .66 on starting and .8 running, not unheard of.

Venki:
For the transformer, I would size it for the inrush of the motor (8.2 amps, 900VA), or more and remember overcurrent protection as per Code. A single phase XFMR from one of the usual companies (GE, Square D, Siemens, etc) should work. But, as I think Sven was saying, why not just run a dedicated 110 circuit and elliminate the trouble from all the extra equipment. I would think it should cost about the same (assuming reasonable access).