Which figures in this post have a source?
Paste the address of any blog post. The checker finds its statistics (percentages, amounts, multipliers, big numbers) and shows which ones link to where they came from, and which don't.
Posts where every figure has a source.
ContentRails reads your site, researches what your readers search for, and writes posts in your voice. A figure it can't match to a source is left out. Try it on your own site.