The instance number picks which hyphen to split after.
Purchase orders are written as PO-NUMBER-REVISION. In B2:B5 extract the revision — everything after the second hyphen.
Solve it on your own to keep the bonus. Each hint gets one step closer to the formula.
The same formula in the other shapes it takes at work.
TEXTAFTER returns everything past a delimiter.
The mirror image of TEXTAFTER.
A negative instance number counts from the end.
The instance number picks which hyphen to split after.
This is the grid you start with. Cell references in the task — B6, C2 — point at the row numbers and column letters below.
| A | B | |
|---|---|---|
| 1 | PO reference | Revision |
| 2 | PO-1180-REV3 | |
| 3 | PO-77-REV1 | |
| 4 | PO-20415-DRAFT | |
| 5 | PO-905-REV12 |
With no instance number, TEXTAFTER splits at the first hyphen and returns "1180-REV3". Asking for the 2nd skips the number, whatever its length, and lands on the revision.