Regarding the total number of crimes vs the rates of crime by race:
Based on the available crime statistics, yes, whites commit the most crimes by total numbers. Yes, blacks commit the most crimes per capita.
It is important to note a couple of facts, however, when trying to draw any conclusions from those numbers.
First: there is a difference between the total number of crimes committed and the total number of crimes reported. Further, there is a difference between the total number of crimes committed and the number of crimes for which a conviction was obtained. Further still, there is a difference between total number of crimes committed, or reported, and total number of crimes for which the race of the perpetrator(s) is known.
So while something like the FBI crime statistics can be a valuable tool and provide some helpful statistics regarding crime, they are not the entirety of the story.
Second: there is no rule that says crimes are committed at a rate of 1 per person. In other words, one would need to know the actual number of perpetrators of crimes to get a more accurate breakdown of how often crimes are committed by a particular group. For example, let's use a sample of 100 people and the percentages that have been shown about crimes committed. If 69% of crimes are committed by whites, and 28% are committed by blacks, one might look at those numbers and say that 69 whites of 100 people committed a crime, while 28 blacks of the 100 people committed a crime. However, it's entirely possible that 69 whites could have committed crimes, while only 5 blacks committed enough crimes to equal 28%. Alternatively, it's possible that 28 blacks committed crimes while only 15 whites committed 69% of the crimes.
Yet again, we see that the statistics do not tell the entire story. How many black perpetrators committed those 28% of crimes? How many white perpetrators committed those 69% of crimes? Is there a widespread crime problem among either racial population, or is it a small minority of each? There is not enough data provided to draw many conclusions when you are limited to only knowing the percentage of total crime without having the number of perpetrators.
Of course, there's no way to know what changes might be shown with more data. Perhaps only 2% of blacks actually commit crimes, while 5% of whites do. Perhaps it's the other way around. What about multiple offenses? How many people commit more than 1 crime, and is that an important consideration? It's certainly troubling that blacks commit such a high percentage of crimes per capita, but there are many possible interpretations and reasons that could be ascribed to that. Is there a problem with a small subsection among blacks that commit a disproportionately high number of crimes? Is there more of a widespread cultural issue? Is the problem more related to bias in arrests and prosecutions than to actual commission of crimes?
As with most statistics, there are facts to be taken away, and there are inferences that can be made, but the inferences are often very subjective and open to debate.