I thought I accurately estimated OOS costs for Clemson about 8 months ago, but now when I run the numbers, it is much higher. I did not have this issue with other schools. Did they raise costs significantly recently?
The Trustees meet every summer to set tuition and fees for the following year. This is the link to the info from July 2016.
Unfortunately, like many public universities, the recent trend has been to increase OOS tuition by significantly more than in-state increases.