eCPM is just a calculation of the amount you've earned per impression, multiplied by 1000. In your case, you've earned $2.34 over 271 impressions, or about $0.008634 per impression. Multiply that by 1000 and you get your eCPM. Specifically, I'd say you had a few very nice clicks. I hope they continue for you. Also, you're not permitted to show all of those stats, as per the AdSense TOS. I suggest removing the image.
I suggest you remove the field which we are not allowed to show to others from this image. Anyway, nice earning for 3 clicks