Percentages are very hard to calculate and really dont even matter once you get up into the triple combos.
The percentages of the genetic punet square dont really ever apply anyway. People put 2 hets together and get all visuals all the time. Some get all normals.
You can get one of each morph in those 2 combos or you can get all pastels, or all spiders..
You just dont know when breeding a triple to a double or more. Your percentages & chances of getting a certain thing go up the more eggs you have tho.