On Monday, Baseball Prospectus launched a new hitting metric which they’re calling DRC+ (Deserved Runs Created). As long as you’re familiar with OPS+ and wRC+ (and if you read this site, you should be), you can understand DRC+. It works on the same scale as Baseball Reference and FanGraphs’ metrics. A hitter with a DRC+ of 100 creates a league average amount of runs. For every point above 100, a batter creates one percent more runs than average. For every point below, a batter creates one percent fewer runs than average.
You can read a more detailed introduction to it here, and you can see how it compares to other publicly available hitting metrics here.