Interesting...

By modifying some settings my hash rate increased from 690 to 999!
300 h/s increase EACH CARD!
Will monitor one day to see whether its stable or not
So far minergate reflecting actual hashrate too!

PS: I'm using SAPPHIRE RX470 8GB OC

Low Power settings for Sapphire RX 470 4G Hynix - 700+ per card : 1100/1750 @ 890/890 and ~95W from the wall ( can go lower on mv's, experiment )
Custom Bios/Mem Straps, talk to Wolf0 for more details

Apparently the number is a lie. This morning when I wake up I have tons of negative shares and I have huge amount negative unconfirmed balance

Im have same error
how im can fix this ?

Read carefuly, he said a few post above that most of the shares were stales, making his 1100H/s not effective at all.

You can increase your hashrate a bit by overclocking the memory and modifying your bios.
Simple copy of your 1500 mem strap on the 1625/1750/2000 mem straps should increase your hashrate a bit.
If you want a bigger increase of your hashrate (up to 900 as xneoenx pointed out), you need custom mem strap which are much more complicated to figure out. As far as i know, these aren't being shared for free atm.

Do you have unconfirmed/pending payments form minergate?
What is your rate of rejected shares?
Was minergate up all the time?

Maybe it's some very bad luck (I don't use minergate but most of the pools have some tool for monitoring the pool luck). But 40% seems like a lot for such a big pool.

Dear Claymore,
Can you have a look on this?

First initialization i always logged in as "vasrashpil@gmail.com" Not my account definitely, see the line at 21:26:29:772   

21:26:13:536   1c08   
21:26:13:567   1c08   ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
21:26:13:583   1c08   º            Claymore CryptoNote GPU Miner  v9.7 Beta            º
21:26:13:583   1c08   ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ
21:26:13:801   1c08   XMR: 1 pool is specified
21:26:13:801   1c08   Main pool is fcn-xmr.pool.minergate.com:45590
21:26:14:411   1c08   
Cards available: 2
21:26:14:411   1c08   GPU #0: name: Ellesmere, 8192 MB available, 32 units
21:26:14:426   1c08   GPU #1: name: Ellesmere, 8192 MB available, 32 units
21:26:14:426   1c08   Total cards: 2
21:26:14:426   1c08   Initializing...

21:26:14:442   1c08   GPU #0 recognized as RX470
21:26:14:442   1c08   card 0, m1 8192, m2 4048 w 256
21:26:14:458   1c08   0 m = 2
21:26:14:458   1c08   GPU #0: HashCnt = 1024
21:26:14:473   1c08   GPU #1 recognized as RX470
21:26:14:473   1c08   card 1, m1 8192, m2 4048 w 256
21:26:14:473   1c08   1 m = 2
21:26:14:489   1c08   GPU #1: HashCnt = 1024
21:26:14:489   1c08   POOL version
21:26:14:504   1c08   b155
21:26:20:254   1c08   GPU #0: -a 1 mode selected
21:26:20:270   1c08   GPU #1: -a 1 mode selected
21:26:29:444   1c08   1 pool specified.
21:26:29:444   1c08   Remote management (READ-ONLY MODE) is enabled on port 3333
21:26:29:538   1648   Stratum - connecting to 'fcn-xmr.pool.minergate.com' <176.9.47.243> port 45590 (unsecure)
21:26:29:772   110   send: {"method": "login", "params": {"login": "vasrashpil@gmail.com", "pass": "x", "agent": "xmr/1.0"}, "id": 1}

21:26:29:772   1648   New connection: reset total hashes counters

_______________________________________________________________________________ _________________________________
However.. After several times of reboot it seems to logged in as my account again. see line 21:28:56:917   
I was in the midst of troubleshooting why my XMR earnings dropped almost 40%..
Please help

21:28:40:817   f70   
21:28:40:849   f70   ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
21:28:40:864   f70   º            Claymore CryptoNote GPU Miner  v9.7 Beta            º
21:28:40:864   f70   ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ
21:28:41:099   f70   XMR: 1 pool is specified
21:28:41:099   f70   Main pool is fcn-xmr.pool.minergate.com:45590
21:28:41:817   f70   
Cards available: 2
21:28:41:817   f70   GPU #0: name: Ellesmere, 8192 MB available, 32 units
21:28:41:833   f70   GPU #1: name: Ellesmere, 8192 MB available, 32 units
21:28:41:833   f70   Total cards: 2
21:28:41:849   f70   Initializing...

21:28:41:849   f70   GPU #0 recognized as RX470
21:28:41:849   f70   card 0, m1 8192, m2 4048 w 256
21:28:41:864   f70   0 m = 2
21:28:41:864   f70   GPU #0: HashCnt = 1024
21:28:41:880   f70   GPU #1 recognized as RX470
21:28:41:880   f70   card 1, m1 8192, m2 4048 w 256
21:28:41:895   f70   1 m = 2
21:28:41:895   f70   GPU #1: HashCnt = 1024
21:28:41:911   f70   POOL version
21:28:41:911   f70   b155
21:28:47:442   f70   GPU #0: -a 1 mode selected
21:28:47:458   f70   GPU #1: -a 1 mode selected
21:28:56:636   f70   1 pool specified.
21:28:56:652   f70   Remote management (READ-ONLY MODE) is enabled on port 3333
21:28:56:699   1fcc   DevFee: Stratum - connecting to 'fcn-xmr.pool.minergate.com' <176.9.47.243> port 45590 (unsecure)
21:28:56:917   15f0   send: {"method": "login", "params": {"login": "bitkachu@gmail.com", "pass": "x", "agent": "xmr/1.0"}, "id": 1}

I'm curious about this as well. With 11 cards going, whattomine tells me I should be getting ~.76, and last night I got .73. I'll math this out and see if this might be correct. I'm honestly just a bit away, but so close that I'm not really bothered.

New 0.5 Wolf Miner? Hehehehe.