Recast's marginal ROI for each channel, ranked best to worst. The next dollar's expected return, week-over-week and month-over-month trend.
Per-channel ranking
| # | Channel | mROInext dollar | WoW | MoM | 7d Spend | ROIavg, incremental |
|---|
mROI (marginal ROI) is the modeled return on the next dollar of spend. ROI is the average incremental return on dollars already spent. mROI < ROI is normal — diminishing returns. mROI ≪ ROI flags saturation.
Channels are ranked by mROI. Strong = mROI ≥ 5×. Healthy = 2-5×. Saturating = < 2×. WoW and MoM track the direction of change — flat is fine, sustained drops on a previously strong channel suggest re-pacing or creative refresh.
All ROI figures are Recast's incremental estimates, not platform-attributed.