30. North-Northwest Bank (NNWB) has a differential advantage in issuing variable-rate mortgages, but does not want the interest income risk associated with such loans. The bank currently has a portfolio of $25,000,000 in mortgages with an APR of prime +150 basis points, reset monthly. Prime is currently 4%. An investment bank has arranged for NNWB to swap into a fixed interest payment of 6.5% on a notional amount of $25,000,000 in return for its vari- able interest income. If NNWB agrees to this, what interest is received and given in the first month? What if prime suddenly increased 200 basis points?