how to calculate the % oil of thyme in thyme ?

We did an experiment titled : the extraction of Thymol in thyme oil and the prof wants us to calculate the % oil of thyme in thyme... how do I do that ?

Thanks

If you want percent w/w it is

(mass thymol/mass sample)*100 = ?

If you want percent v/v it is
(mL thymol/mL sample)*100 = ?