A grandfather owns property and dies leaving his wife and four children: two daughters and 2 sons. Then his wife dies. The second daughter had no husband but 3 children were survived by her death. The first son dies leaving no wife and no children. The second son dies and was survived by his wife but no children. Finally the oldest daughter dies leaving a husband and 5 children. What percentage of the grandfather's property would the remaining heirs (husband and children) inherit?