In addition: the $EV Won can be confusing when it's negative and a larger number than the actual buyin, or positive and a larger number than the actual first price money.
You have some extreme situations (often in Double or Nothing and in SUPER TURBO SNGs)
$169 buyin SUPER TURBO, $Won = $720 (1th place)---> $EV Won = -$196 (a negative value, that is bigger than the actual buyin)
$5.20 buyin DoN, $Won = $10---> $EV Won = $11.35 (more than you can actually win)
But allowing these values -outside of this range- will result in more accurate long term results.
So EV becomes quite a meaningless number if you focus on one game , but the more you play, the more accurate it gives a representation of your overall "luck".