Exactly Vaiva ..I have other breeds and if there was a calculator how much of other breeds went into creating my individual dog, it would certainly be
fun but I would take it as seriously and as meaningful as the online quizzes that purport to tell you "who your true love is" and "what nationality are you?"...
The 'information' you get from such silly online quizzes and calculations of 'blood' - any type - is totally meaningless and only meant for entertainment or for when you are bored. and again no breeder is thinking about these 'results' when making breeding choices...
if a person really wants to examine the breed origins, the answers are right there are in the pedigrees. Those are actually helpful in tracing lines, and probable characteristics.