Will anyone show me how to set these values into the Linear Interpolation formula? Thanks.
a=8%, b=8, c=(-60,580)
a=8%, b=9, c=(-173,530)
The answer is 8.2% - I just would like to see the set up :)
Go online and use this interpolation calculator and try various scenarios until you get your rate:
http://www.ajdesigner.com/phpinterpolation/linear_interpolation_equation.php#ajscroll