I delegated 10k SP to 
[Edit: here's my post from a few days ago: https://steemit.com/steemit/@libertyteeth/delegate-delegate-delegate-delegating-steem-power-to-minnowbooster-my-upvotes-are-diminshing-as-a-result-by-about-a-third ]
Right now, 1 STEEM is worth $1.14 -- so, the 10k SP are worth $11,400. And, that will fluctuate as time goes on as well. But at any rate, it allows us to use common units; 1 SBD will almost always be $1, so that would be 11,400 SBD that was delegated.
7 SBD per day would be 2,555 SBD per year, which is 22% of 11,400; in other words, at the current rate will have earned a 22% return after one year.
That's a great return! Plus, I can add compounding to it -- when I'm paid out, I could purchase more STEEM with it and then power it up, and delegate it out to
Some simple math; if I went a year without reinvesting and then reinvested all of it, it'd be up to 11,400 + 2,555 = 13,955 SBD delegated. And the return would similarly increase by 22%, so it'd be around 8.5 SBD per day.
I'll keep an eye on it, and report as it changes. Hope this helps!
(Image from https://www.minnowbooster.net/)
