One guy just joined AdSense, he got one page impression, and one click through, and that $.62 earnings. (I may suspect that he clicked his own ads! *_*)
He asked what's eCPM, because that's a very big number, $618.18, why it's so much difference between earning and eCMP?
Page eCPM is average cost of one thousand page impressions, your earning divided by page impressions multiplied by 1000, I we have earning 0.62, so page eCPM is 618.80. that's right.(0.62/1)*1000 =620 ~=618.80