Which metric measures the percentage of people who take a desired action after being exposed to a campaign? By vmartinez Which metric measures the percentage of people who take a desired action after being exposed to a campaign? ROI. Bounce rate. Conversion rate. Reach. Related content Related questions:The marketing team for your company's website…The marketing director for your company’s website…The marketer for your company’s website expresses…You used both Sponsored Products and Amazon DSP…