HP-65 Financial Software request

[Dieter]

(01-07-2019 05:35 PM)Don Shepherd Wrote:  

(01-07-2019 04:03 PM)Dave Britten Wrote:  Margin=(Sell-Cost)/Sell

Dave, thanks for the excellent, simple equation for the 17b solver! "No programming required," as they say.

I don't know much about the 17b solver, but I suggest changing the formula to

Margin/100 = 1 – (Cost/Sell)

This way each variable occurs only once and the solver can calculate a direct solution.
Also the margin is directly returned in percent.

Dieter