BANGOR — University students on average will pay 4.3 percent higher tuition rates in the coming school year under a budget approved by University of Maine System trustees.

Trustees described the tuition increase, a weighted average of rates at all seven universities, as the lowest since 2002. Average tuition and mandatory fees range from $7,300 at the University of Maine at Presque Isle to $10,588 at the University of Maine.

Rebecca Wyke, vice chancellor for finance and administration, said the universities have worked tirelessly to lower costs and achieve savings.

UMS Chancellor Richard Pattenaude also formally informed trustees today he’s not seeking a contract extension. His contract expires in June 2012 after five years as chancellor and 16 years as president of the University of Southern Maine. He will return to teaching.