Yes, if you add or subtract from the numbers which determine the chemotype, it changes. That's all you really said, so unless you are trying to disqualify chemotype (which would be kind of like sawing off your own leg), this is blatantly obvious. But I don't think quoting a chemotype and then juggling the numbers is a good way to represent a lab test.
And yes, different parts of the same plant vary too, but I assume you are sending ground powder, and not specific parts. The variance between root and rootstock is not significant, and other parts should not be in there anyway, lol.
So here's a math problem: Get from the first chemotype to the second without changing any number more than 0.2. And bear in mind this is a significant difference, one would hope that the lab has a better resolution than this!