Doubt:

Profitability for Scrypt is around 0.00106078 BTC/Gh/Day or 9.4 USD when mining at NiceHash

Even if we say NiceHash is a marketplace and doesnot switch algo w.r.t profitability, here are two other pools which does it..

Multipool.us profitability: 0.00085 BTC/Gh/Day
Miningpoolhub profitability:0.00085 BTC/Gh/Day

Could you tell me why the profitability is much higher (more than 2X) [0.0027 BTC/Gh/Day (23.7 USD)] in yapool ??

I have few Scrypt miners now pointed to NiceHash, I am considering pointing it to YAPOOL.