Can anyone help me with a pretty simple problem? I need to figure out how a multistate business is going to be taxed differently in 2013 compared to 2012 with the passage of Proposition 39 in CA

I'm doing this for my federal income tax class and this question has been tough for me. My teacher gave us a hypothetical problem (which I can provide) that is pretty simple and straight forward. For the first question, we had to determine his 2012 tax liability and I got that right. I used apportionment and the method described in section 4. I've been trying to find the full text for Prop 39 and this is the best I could find. Thanks guys!