It varies for each section. I do not have the books with me, (will send you the score conversion when I get back), but I will tell you this now, if somebody tries to claim it. The 70% ~ 10 (what ever the standard AMCAS conversion is) is not correct for a few of the TBR sections.
I do not remember the details, but some of them are even 55% correct = 10 MCAT.
Be careful with the conversions you find on SDN. I used the "universal" conversion posted on here for all of my chapters, just to find the real conversions in the book, realizing the projected "6-7" using the SDN chart was a "10-11" using the chart in the TBR books.