Suppose the loan is $$1,000$ and the yearly cash flow payment is $$85\mathrm{.}81$ for the next $25$ years. What is the yield on this fixed$-$payment loan?

$PV=-$$$1,000$

$FV=0$

$N=25$

$PMT=$$$85\mathrm{.}51$

$\frac{\text{I}}{Y}=6\mathrm{.}97\%?$