After a few days on Steemit some Questions have emerged. 

STEEM POWER - What are the advantages and Disadvantages?

STEEM POWER  encompasses the point of 'Give as You Would Like to Receive'.  Better support is provided to Authors - In Up-Voting posts We provide more support/value/money for Author and also give ourselves a better curation reward. My understanding of the split between Author and UpVoters is a 75% to 25% split.  ![help.jpg](https://steemitimages.com/DQmU9wXHJezwwt8w5LYJpaYVzekXzTFpyREcuMtomstMA5V/help.jpg)

CURATION REWARDS - How does this work exactly?  Is their an exact number formula?

CURATION REWARDS and STEEM POWER - What is the purpose of turning down Steem Power when voting?  Isn't Steem Power unlimited....meaning, in the sense that it doesn't deplete?

WHEN SUBMITTING A STORY
REWARDS:  Power Up  100%   or   Default 50/50 split   or    Decline Pay Out
How does this work exactly?
PowerUP 100% - Does this means reward is entirely in STEEM POWER?
Default 50/50 split - Does this mean reward is half Steem Dollars and half Steem? Or is it a split between Steem and steem Power?
Decline Pay Out - What does this mean? 

How exactly does Steem Dollars relate to Posts?
Is it that all posts are calculated in steem dollars and based on your choosing Power Up 100% or 50/50 or decline payout?