If you have been denied your rest and lunch breaks, the penalties are serious! Not only are you entitled to your regular wages that your employer has essentially stolen from you, but you are also entitled to a higher calculation, which would include whatever bonuses, commissions, etc. (See Labor Code 226.7(c); and See Ferra v. Loews Hollywood Hotel, LLC.)
Also, there are serious penalties against your employer for not providing you with the rest and meal breaks. You are entitled to recover 1-hour of pay at your hourly rate (see above), for every violation, including both meals, and rest. For example, you can collect two hours of your pay, if you worked an 8-hour shift and were denied a break and a lunch – one hour for the denied break, and one hour for the denied lunch.