FY2026 EBITDA fell from $452K in Prior to $303K in Current, a change of ($149K), or (32.9%). The note is in `output/drivers-note.md`. The script's figures are in `output/drivers.json`, and its check passed: the six driver deltas add up exactly to the EBITDA change.

**Three of the six drivers changed:**

| Driver | Prior | Current | Months changed | EBITDA delta |
| --- | --- | --- | --- | --- |
| Active customers | 46 | 44 | 12 | ($133K) |
| Gross margin | 26.2% | 26.6% | 12 | $39K |
| Headcount | 23.00 | 23.75 | 9 | ($54K) |

Revenue per customer, cost per head and other opex did not change, so their deltas are $0.

**Why EBITDA moved:**
- **Active customers did most of it.** Fewer customers cut revenue by ($509K), or (4.3%), and took ($133K) off EBITDA.
- **Gross margin offset part of the drop**, adding $39K.
- **Headcount added cost**, taking ($54K) off EBITDA.

The deltas come from moving the drivers one at a time in a fixed order, so they are not each driver's "share" of the change.

The data shows how much each driver moved EBITDA, not why it moved. The note's Review section asks each driver's owner which documented assumption supports the change. It also asks why headcount changed in only 9 of the 12 months.