<p>During my undergrad at USC, I played a flat tuition rate.</p>
<p>I am going into a master's engineering program and will be taking 9 units.</p>
<p>There is a flat rate here: USC</a> Financial Aid - Applying & Receiving Financial Aid - Graduates & Professionals - Costs</p>
<p>And a per unit basis mentioned here: Schedule</a> of Classes: Fall 2013: Tuition and Fees</p>
<p>How do I go about choosing to pay on a per unit basis?</p>
<p>Thank you!</p>