Excise taxes in Washington state on weed are 37%, much higher than the ~20% you suggest for CA. https://lcb.wa.gov/mj2015/faqs-on-taxes https://lcb.wa.gov/mj20

Excise taxes in Washington state on weed are 37%, much higher than the ~20% you suggest for CA. https://lcb.wa.gov/mj2015/faqs-on-taxes https://lcb.wa.gov/mj2015/faqs-on-taxes https://dor.wa.gov/find-taxes-rates/taxes-due-marijuana https://dor.wa.gov/find-taxes-rates/taxes-due-marijuana