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You'll get back $145 APR (Per Year) and $11.25 ROI every 3 months.

Thanks! Yeah I got it too. But I think , if I buy Steem Power for 100 SBD, I can make more than $ 45 a year. But not really sure about this.

If you delegated SP you would also make the current interest from owning it.
So at least 46% APR. But it has to be 1000+ SP, otherwise liquid Steem / SBD.