An interactive visual spreadsheet allows the calculation while allowing viewing and explaining the calculations to third parties. It is self-explanatory and multilingual.
LinkNotions + GoConvert
Use GoConvert and LinkNotions to maximize the ROI of your sales and marketing spending. Enrich information in your LinkNotions account, improve contact and deal information, and start visualizing marketing and sales performance. GoConvert works around the clock to automatically fill in missing data. Your insights get better all the time.