How much monthly allowance is reasonable?

<p>Our daughter is a junior in college. Over the past three years we’ve weaned her from depending upon us for extra spending money to her earning her own keep over the summer and winter break. We still pay tuition and fees, room & board, cell phone and auto insurance. We’ll also be paying off her Stafford loan. Books and personal expenses are on her, however, which includes sorority dues.</p>