I've found this to be a very helpful reference chart that gives a good correlation of percentiles to scaled scores:

http://www.iqcomparisonsite.com/iqtable.aspx

The 15 SD percentile column is the one you want.

It depends on how the percentiles are rounded. 99th percentile could be anywhere from 133 all the way up to 144, because on percentile reports you generally see either 99 or 99.9 (but nothing in between).