Perfect! The December 2025 MBR deck has been successfully assembled. 

**Deliverable**: `output/IS_MBR_2025-12.pptx`

The deck includes six slides:
1. **Title slide**: December 2025 Monthly Business Review (InterStationary)
2. **Headline**: Three bullets covering revenue performance, gross profit shortfall, and operating income variance
3. **P&L vs budget**: Table with Revenue, Gross profit, Gross margin, Operating expenses, and Operating income rows
4. **KPI scorecard**: All 8 KPIs with actual, target, and status
5. **Drivers**: Three line-item variances (Other operating, Cost of goods sold, Technology)
6. **Watch list**: Four KPIs off target (Days sales outstanding, On-time delivery percent, Active customers, Inventory turns)

All 54 figures in the deck are traced directly to the scorecard and MBR source files. The deck follows the InterStationary house format with the brand colors, fonts, and footer.