I need help determining a calculation based on an online calculator

[rham243]

I'm building a calculator that needs a holding time formula to replicate the one seen on californiaforclosureprevention.com

To see it please visit http://californiaforeclosureprevention.com/

login using

Username: stefon houston
Password: Wealthy1

click Submit Offer

In the far right column, I need to know the formula of how the estimated hold time (days) affects the recommended offer. I can't seem to figure it out. And I need to incorporate that into the attached calculator.

Thanks so much for your help!

[rham243]

I have updated the title