How to get Number of Days Late BY Customer INVOICE

Looking for way to get output showing customer invoice and number of days late BY Invoice.
in JDE E1, Version 8.12

I realize it can be calculated, but it seems the work has been partially done….data’s just not accessible.

F03B16 (Account Statistical History) has field RVAVDN - Average Days Late, non-weighted, by period.
F03B16 (Account Statistical History Summary) has RSAVDN - Average Days Late, non-weighted total

is there an existing field/calculation that generates days late by individual invoice?

Thanks!