Interest Rates: For every .5% rise, prices need to fall 3%?

[Marc C.]

So, according to http://www.crefcoa.com/apartment-rates-main.html, apartment loan rates are up about .5% under D. Trump. Around 4.88% for what I'm looking for, up from 4.39%.  

What should that do to YOUR calculations, as far as overall rate of return? Here's an example: On a deal I'm underwriting, it takes about 1.1 percentage points off the average 5-year Cash on Cash return for the property (constant purchase price). From 11.4% to 10.3%. 

Here's where it gets interesting: If I want to preserve the 11.4% cash flow, all I have to do is get the seller to accept a 3% lower selling price than I'd originally bargained for. (That also keeps my investors' target IRR about 20% over a 5-year hold...my goal is for each investor to double his/her investment in that period.)

So, you can see what higher rates are going to do to prices: For every half-point increase in rates, we'll need to see a 3% drop in purchase price. (Says my spreadsheet. What does YOURS say?) 

If you're in contract on a deal you got under contract before Nov. 8, are you going to try to "retrade" the purchase price by 3% to account for the rise in rates? If the Seller voted for Mr. Trump, then I think he/she should share in the pain!