Calculating stored values

[billeales]

Hoping someone can offer some help, I am trying to calculate individual stored values for each selection at once, for example, I have created a custom order for speed and I wanted to calculate the speed difference for every selection vs rank 1 in custom order. I am able to do this individually but had hoped I could do a "Every" selection stored value to apply to all.
The calculation would just be speed of current selection - speed of custom order 1 for example. I have tried Any and Every but each time I don't get any SV displayed for any of the selections, sure it is something simple I am overlooking.
Thanks