How to estimate the amount parents are willing to pay for 2015-2016 college expenses for CSS profile

Right now, they need to figure out a budget for what they are willing to pay. And not just for this question, but for when you are deciding between colleges in April. Ideally, they should have done this and told you their contribution limit before you made your application list, since you are now at risk of being financially shut out, since you could not have been assured that your safeties are affordable if they did not tell you their contribution limit.