<p>Duke grants are need based. It means the more parents make, the less grant is provided. The additional earning will go to duke. Is there a formula which can tell how much extra parents have to pay if they make additional $10,000 a year.</p>
<p>Run the Net-Price Calculator. In most cases, however, I would suspect that dollar for dollar, parents would still come out ahead if they’re making more (perhaps not as much as they would want, but ahead all the same).</p>