18 March 2026

Cost file hygiene before you draw a single bar

Five checks that stop category margin contribution charts from being built on the wrong rate.

Beautiful charts on the wrong cost basis waste a trading meeting. Before we draw, we ask clients to confirm five unglamorous points.

  1. Which rate feeds the P&L — invoice, net, or a blended planning cost?
  2. Pack-size changes — did case counts shift mid-period?
  3. Private-label code maps — are sister codes double-counted?
  4. Clearance and launch holds — which SKUs should stay out of contribution?
  5. Control total — what finance number must the chart reconcile to?

If any answer is fuzzy, we pause. A two-day delay beats a confident wrong delist.

Commissioning a first pack? Start with the flagship chart engagement.