Whats the answer to the question?

Having heard of your knowledge of present value techniques, you have been asked to testify as an expert witness in the following lawsuit:

Several homeowners in a nearby community have organized to protest against alleged gouging on the part of a local lending institution. One resident presents his payment book as evidence.

The resident has a 30-year, fixed rate loan at 6 percent interest for $200,000. He got the loan 10 years ago and has been making equal annual payments of $14,529.60 ever since. He observes that he has paid the lending company $145,296.00 yet his payment book indicates that the principal due on the loan has only declined by $33,345.40. He presents this as obvious proof of "gouging on the part of the money changers". Do you agree? Why, why not?