When you get 50/50 rewards it gives you half in Sbd (and it assumes they are worth $1 no matter what the market price is. That's why it's so nice when Sbd are more than $1 because we still get the same amount on our posts but then we can sell it for more) and half in steem (based on the market price of steem) so you will only get the same amount of each if the price of steem is $1. Hopefully that makes a little sense. This post explains it in more detail. https://steemit.com/steem/@littlejoeward/could-a-high-steem-price-actually-be-bad-for-us