Spot the error. Tuition increases, say official, are driven by the universities' costs, consequently, tuition income typically covers less than 50% of college budgets.

Explanation

The word "consequently" is used to indicate a result or outcome, which is appropriate here. However, the use of a comma before "consequently" makes the sentence a run-on sentence. A semicolon or a period should be used instead to properly separate the two independent clauses.