Every chord formula chart I've found (over three dozen so far through Google search or Google images) gives chord formulas relative to a major scale.

For example the major formula is 1-3-5 and the minor as 1-b3-5. The formula for diminished is 1-b3-b5.

But in a natural minor key a minor chord is the I chord and its formula relative to a minor scale would seem to be 1-3-5, correct?

If so what are the formulas for the other chords, like augmented and seventh chords, relative to the natural minor scale? Is there a chart I'm not finding?