Marketing ROI measures the return generated by your marketing investments. The basic formula is (Revenue - Marketing Cost) / Marketing Cost × 100. A positive ROI indicates your marketing is generating more revenue than it costs.

To improve marketing ROI, focus on tracking attribution accurately, optimizing high-performing channels, reducing spend on underperforming campaigns, and continuously testing new approaches. Building strong brand awareness and brand equity can also improve long-term ROI by reducing customer acquisition costs.