Prigozhin said something interesting about the figures of the battle of Bakhmut.

He says he recruited 50,000 convicts of which 20% died, so 10k, and that roughly that number of contract PMCs died as well, so 20k all up. He then says a further 20% were wounded(which he states means unable to perform combat duties for 3 months or more). So another 20k or less, considering that he didn't state how many contract PMCs there were but I doubt there were more than there were convicts.

So 20,000 dead and around 20,000 wounded. Though this does not account for Russian army losses but they didn't do the brunt of the fighting there.

Against this he says the Ukrainians lost 50,000 dead and around 50,000-70,000 wounded.

It's hard to know what to make of this, admitting 20,000 dead does seem pretty honest though, I think that the Wagner casualty figures are accurate at least.