Hand win %

[hummusx]

Just wondering if a few of the more experienced players could clue me in to what the average hands won % should be? Two days ago I played about 15-20 $10 SNGs and averaged 25%, which seemed kinda high. I made a lot of money. Yesterday I only had time to squeeze in 6, of which I won NONE, and my hand won was something like 8%. I had a pretty horrible run of cards, and I'm pretty sure 8% is low of average, but 25% seems pretty high (even considering all the steals in the late game).