I suspect you haven't seen any responses yet because your question is not very clear. What are you trying to find out, exactly? Case studies don't generally include pay increases but also tend to not factor in inflation. I suspect that to a first order of magnitude, these cancel each other out. Exceptions are for people who will end a training program and start earning significantly more in the near future (doctors, etc.).
Most people around here focus more on attacking your expenses, something you have more direct control over. Why don't you post some details and see how the crowd can help?