1/2 is paid as steem
1/2 is paid as sbd

SBD isn't always printing these days, but when it does it's likely under $1

So when you get paid it thinks you're getting $1/sbd but you're actually getting less (if you're getting a payout with any sbd)

So, it says it paid you $10, $5 in steem and $5 in SBD, but the SBD was worth half, so you actually only got $7.50. Power up 100% and you'll get the full $10.