I tested my blood and i don't know what are mean by gra% hcv mch because these are marked low , thanks ?

CBC values: GRA%=percent granulocytes. These are the infection fighting cells, also called pmns or neutrophils MCV=mean (red cell) volume, a measure of the average size of rbc, commonly decreased with iron def. or thallasemia MCH=mean cellular hemoglobin, the concentration of the hemoglobin molecule in the cells, again commonly decreased with iron defic. or thal. If Hgb/Hct are normal, look for alpha-thal