I tried it out. My best best-selling books were Circles of Confusion and Learning to Fly. Circles came in at 23% chance, and LTF at 42%, and indeed, LTF did better than Circles. The book I'm just finishing writing this month, Shadows Walking Backward, came in at about 33%, but I'm not changing it. [Full disclosure: Marketing may have other ideas.]
How about you? Anyone have a title that got more than 75%?