Equation in multiple numercial inputs - by: urbana

Hi, I can't solve my problem with a relevance equation.
I have a question that asks for 4 Numbers.
(we ask for prices)
Minimum Price (mp)
Cheap Price (cp)
Expensive Price (ep)
Maximum Price (map)

Therefore I need a equation that checks:
Is mp < cp <ep < map
Is cp > mp <ep <map
Is ep > mp > cp < map
Is map > ep > cp > mp

An that is the tricky part I need to evaluate the single input and not to check for overall errors.
I could do it in JS but I struggle with the equation field and the manual is behind a lot versions.

Thx a lot!

urban-a