(HP-65) Percent Functions

[Dave Britten]

(01-12-2020 03:59 AM)Paul Dale Wrote:  I've never used %D.MS. What disciplines use it and what for?

I think it's more likely it would be used for intervals of time rather than angle measurements.

Margin and markup would probably be best suited to a separate card so there would (hopefully) be enough room and keys to implement solve-for-any-variable (cost, price, margin, markup).