Revenue - current estimated revenue (now)
Revenue 24 - past revenue (for the last 24 hours)
Percentages are relative to Ethereum, Ethereum being a constant 100% at all times for any period (that is why it is highlighted green). Everything is compared to Ethereum basically. Current profitability is present, the other 3 are calculated from past (stored) data. You can see movements and trends using these.
There is no prediction whatsoever on whattomine just pure good ol' stats.
@fonyo, thank you!