Keep on adapting your saddle position till you feel fine. There is no exact formula to calculate the ideal height.

Keep in mind that most people are riding a too low saddle position. This is the result of riding bad saddle positions in childhood years. As a child grows (much faster than parents believe) and most adults tend to be too lazy to adapt their kid's saddle every month, it never catches up with the kid's actual length. Kids, being very "adaptive" themselves, get used to riding bad saddle positions easily. In adult life they have no idea of how a saddle should be set, so they keep riding it the wrong way.

I found the best saddle position by increasing it's height by little increments untill my hips started to "wobble". Then I lowered the saddle by 1/3 of an inch; just perfect!