Each mix makes 7 to 10 8oz cups of soup.

1 1/2 cups of soup (12 ounces) is a typical bowl of soup.
A 7 cup mix will make a little over 4 1/2 bowls of soup, 12 ounces each.
An 8 cup mix will make a little over 5 bowls of soup, 12 ounces each.
A 9 cup mix will make 6 bowls of soup, 12 ounces each.
A 10 cup mix will make a little over 6 1/2 bowls of soup, 12 ounces each.