No lack of interest

The Consumerist headlined this story "Chase Raises Reader's APR To 148.14%", which is not quite accurate: the effective APR for that particular month was indeed that high, because the customer did have a very small balance, which generated a suitably-small finance charge, which the bank, in accordance with its rules, rounded up to $1.00. The average daily balance was barely $8, but $1 worth of interest, expressed in yearly terms, does work out to that percentage, and by law they have to give you this number.

In fact, I once managed a monthly APR in excess of 322 percent in almost exactly the same manner.