He will be doing 2 years at 85%. Approximately 20 months (1 year, 8 months).
The above answer is for general information only and is based on the information you posted. Every case is fact dependent, so to get a thorough analysis of your situation, you will need to consult face to face with an attorney licensed to practice in the jurisdiction where the incident took place. Do not conclusively rely on any information posted online when deciding what to do about your case.
Non-violent offenders may be considered for early release from state prison, (sometimes then being sent to county jails), but because of the nature of your husband's crime he will probably have to do the full 85%.