Your Results In A Percentage
These tests come back with a percentage result. It might say something like, “You are 31% British.” This figure means that 31 percent of your DNA pieces compared the closest to the 23andMe library, which is considered to be British.
However, the pitfall of this method is that the tests are only as good as the library of the company. They will need to have an incredibly extensive range of samples to compare yours to have an accurate result.