The second one has the same chart but does the math for you.

 

http://walterfootball.com/draftchart.php

 

http://www.calculatorsoup.com/calculators/games/draft-pick-value.php

In response to NoMorePensionLooting's comment:

Looks like the old standard value charts, prior to the rookie salary caps. I believe the premium that top 10 picks (especially the top 5) have over the bottom 10 is much bigger now. How much, the teams don't really understand yet. But definitely, these charts don't reflect those changes yet. I'd be surprised if teams still follow this chart.

I believe the chart is still current and in use.

In response to NoMorePensionLooting's comment:

no chart is the one in use and never was (well except for Dal). Each team has their own value charts based off the players in that years draft, their needs, and how they value certain picks. They change every year. These types of draft charts are really just for the fans to get more excited about.

How long has this chart been in existence? Was it around before salaries got out of hand? Probably provides at least a basis for deals.