Bernie got roughly 43 percent [realclearpolitics.com] of the popular vote.
That's only the primary count. If you include the caucus votes, he got about 49% of the popular vote.
Now, we know the DNC was in the bag for Hillary and pushing the media to cover her favorable. It's generally considered that good press is worth about 5% in the polls.
The Superdelegates were for Hillary, but we probably would have had a situation where Bernie got the popular majority but Hillary got the nomination, if the DNC had played neutral.