CSS SR-160A - Parental Contribution

<p>The CSS Profile asks how much we the parents plan to pay for college expenses. I've searched and found one person who said to use zero, another who said to use 25% less that the parental part of the EFC, but neither poster seemed to have insight as to why. Does anyone have insights into the thinking behind this question? Right now I'm tempted to put down just enough money for personal expenses and transportation (say, between two to five thousand).</p>