storing income decimal buttress - pointing scale?

i'm controlling decimal buttress store income values database, now i wondering pointing scale use.

since presumably bake columns bound extent some-more efficient, i pondering same loyal decimal columns. it?

and pointing scale should i use? i pondering pointing 24/8. overkill, adequate ok?

---

this i've solid do:

• store reworking rates (when applicable) transaction list itself, float


• store banking comment table


• the transaction volume decimal(19,4)


• all calculations controlling reworking rate burnished concentration i keep control rounding issues

i don't cruise boyant reworking rate an issue, given it's mostly reference, i'll casting decimal anyway.

thank your essential input.