maybe not worded so right.
i compare the percentages of the test to the return of the extracted flower. if i get 23 percent return on concentrates (flower extraction) then the flower should also be in that general range. give or take.
not 60 percent lower.
ps...yes i agree the purple pro are not a good test at all. they are only semi accurate up to a certain point. have had wide ranging results with same flower.