There looks to be a problem with your points calculator. Double check AKV studio savanna view.
For example, if one calculates how many points one needs to stay arriving on March 1, 2012 and departing on March 31, 2012 in an AKV studio with savanna view, one finds from using the pdf file that it takes 597 points to stay in an AKV studio savanna view, but your calculator says that it takes 579 points.