A Return on Investment Calculator is a tool that is based upon a defined set of “Business Drivers”, who/ what we impact (cash flow, labor reduction, productivity) and “Business Metrics”, how we impact the drivers (account attrition, average burdened salary, margin). The ROI Calculator validates the Economic Value Proposition and effectively conveys it in economic terms by assessing these drivers and metrics in terms of cost reduction, cost avoidance and revenue increase.