That sounds right, as usual from You Fen Kenner, I mean Ken FennerWith target marketing and your own campaign, one should see a 1000%-2000% ROI on advertising. Celeste, with a 200% gross ROI that means you are spending 50% on your advertising/lead acquisition cost. That's way too high for an established business. Ten percent is the number one should shoot for. For every dollar spent on advertising, a company should be billing $10.