Now that you pointed it, I can clearly see a shift: the value displayed in "$" in the Steemit UI is bigger than the sum of the SBD + SP. If you see you have to get $10, you get around 5+ 1.

But _in absolute terms+, the actual value in $ is way higher than what the Steemit UI shows. Just checked my stats and a post displaying an author rewards of approx $10 in Steemit, resulted in 5.7 SBD + 1.3 SP, which is roughly $75.

The display in"$" in Steemit is way off. I'll have to look more into it. I find steem.supply to be reasonably accurate, though, I don't know why :)