Although You may not want to hear this, its actually good price with current difficulty. Here are some rough numbers for my RIG of 5* R9 280x:
SlothCoin SHA3 - 16,759,500 SLOTH * 0.00000004 LTC * 0.0244 BTC -> 0,0163 BTC / day
HeavyCoin HEFTY1 - 295 HVC * 0.0000391 BTC -> 0.0115 BTC / day
Litecoin Scrypt - 0.62 LTC * 0.0244 BTC -> 0.0151 BTC / day (but also twice power consumption / heat)
What's your operating cost for that rig, and your hashrates? I'm only running a single GTX 760 but I haven't found
any coin that even covers my running costs, let along the capital cost of kit (which in my case was free as this is my gaming system, not a dedicated rig).
IMHO having SLOTH selling for litoshi instead of satoshi just makes the problem worse.
I've made more from arbitrage of altcoins between different exchanges than I have from actual mining.
p.s. Keccak running at half the power isn't a good thing, it just means that the code isn't utilising the GPU as well as it could be.