why not mining ltc ?? Today %50 profit.. better then mine ltc..
We are mining LTC every time when there are no more profitable altcoins. It's just variance - sometimes we find more LTC blocks than expected and sometimes less than expected. It's normal at every pool. Today's profits are already better.
i have 780 mh/sec power.. and yesterday earning 0.12478270 BTC.. it's worse ever
If you mine ltc why low earnings then ?
ltc calc = 750 mh/sec around 16+ LTC per day.. 16 * 0.0150 btc = 0.24 btc per day.. i earn 0.12478270 btc.. its about half
Regars.
Mining is a random game. Miners are trying to brute-force the next block hash and they do it with various luck. Your calculation shows expected/average number of LTC earned / blocks solved if miners' luck was 100%. Actual number of blocks solved will vary in short term (days), but it will be according to expectations in long term (weeks or months, depending on pool hashrate). If the pool is expected to find 10 LTC blocks per day (this is not a real number for CM, just a round number for example), it might as well find 5 blocks or 15 blocks in any given day.
Additionally, after mining coins, we exchange them to BTC and payouts are not always covering exactly 24-hour periods. If latest withdrawal from exchanges before sending payout was at 23:00 two days ago but at 19:00 yesterday, it means that yesterday's payout covered only 20 hours between 23:00 and 19:00 (and the next payout might cover 28 hours between 19:00 and 23:00 next day).
tr;dr: you should look at long-term stats and don't worry about daily stats as they are vulnerable to mining luck and other minor factors.