How do I calculate ROI in digital advertising? — answered by Engineer Saeed Baatiah
Basic formula: ROI = ((Revenue - Ad Cost) / Ad Cost) × 100. Example: spent $1,000, generated $4,000 in sales → ROI = (3,000/1,000) × 100 = 300%. Also track: Cost Per Click, Cost Per Lead, Cost Per Acquisition, and Customer Lifetime Value for a fuller picture.