Slide 5. How the Calculator Works (cont'd) The Asthma Care Return-on-Investment CalculatorSlide presentation describes the Asthma Care Return-on-Investment Calculator. Return on Investment (ROI): A program that costs $50 per participant leads to an ROI* equal to $3,750,000 saved divided by $5,000,000 cost ($50 cost per participant multiplied by 100,000 participants), which is equal to $0.75. This result means that every $1 invested returns only 75 cents, or costs 25 cents.A breakeven ROI is equal to $1.00.*Formula involves discount rate. See Calculator Appendix, "How the Model Works." Previous Slide Contents Next Slide Current as of October 2010 Internet Citation: Slide 5. How the Calculator Works (cont'd): The Asthma Care Return-on-Investment Calculator. October 2010. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/professionals/clinicians-providers/kt/webinars/roicalc/roicalcsld5.html