Slush's pool (bitcoin.cz) payout question

[yoloswaglol]

New here.
I'm a bit confused by some of the rewards I am seeing in Slush's pool.

Example:

#   Block found at   Duration   Total shares    Your shares    Your BTC reward    Block #   Block value   Validity
20780    2013-11-09 23:11:34    2:21:41    550859564    605    0.00002566    268742    25.18185416    confirmed

According to the main page

(25 BTC + block fees - 2% fee) * (shares found by user's workers) / (total shares in current round)

So I have total shares 550859564, my shares 605, reward is BTC 0.00002566 but that seems low.

My math gives me
(25.18185416 * 0.98) * (605 / 550859564) = 0.00002710367


0.00002710367 > 0.00002566
Any idea what I am missing?

[jeffhuys]

Where did you get "25.18185416" from?

[Jacce]

Where did you get "25.18185416" from?

It's 25 + block fees, so probably the block fees.

[yoloswaglol]

Where did you get "25.18185416" from?

In the Slush's pool statistics page, there is a table titled
"Bitcoin block history", this is from the column "Block value"

You can see the block in question here:
http://blockchain.info/block/0000000000000003d9da3be4b9a972c5626aec46d5398f455611067a38842826?site=slush

This appears to be the 25BTC "Block reward" plus 0.18185416 BTC "Transaction fees"

[Jacce]

Also, to answer your question, I think (but I'm not 100% sure) that Slush's pool give more reward for shares found in the end of a block than in the beginning of one.