* Your residency status: In-state tuition is considerably cheaper than out-of-state tuition.
* Your program: Tuition rates differ between undergraduate, graduate, professional, and other programs. Even within a college (like LSA, Engineering, etc.), different majors might have slightly different costs.
* Specific fees: Beyond tuition, there are various fees associated with enrollment, such as student activity fees, technology fees, and health insurance.
Therefore, there's no single answer to "how much is the current per credit hour cost." To find the exact cost for *your* situation, you need to visit the University of Michigan's Office of the Registrar or the relevant college's website (e.g., the College of Literature, Science, and the Arts website if you're applying to LSA). They have tuition and fee calculators and detailed breakdowns of costs.