In order to calculate ROI, you must first identify the costs and benefits of your call center initiatives. Costs refer to the investments or expenses incurred while implementing your initiatives, while benefits are the outcomes or results achieved. Different metrics and methods can be used to measure costs and benefits, depending on the type of initiative. For call center initiatives, these metrics and methods include staff salaries and benefits, training costs, technology costs, operational costs, customer satisfaction, customer retention, customer lifetime value, revenue, sales, upsells, cross-sells, referrals and surveys as well as feedback analytics, reports and benchmarks. After identifying your costs and benefits, you can use the formula ROI = (Net Benefit / Cost) x 100 where Net Benefit = Benefit - Cost. As an example, if you invest $10,000 in a call center initiative that increases your revenue by $15,000 then your net benefit is $5,000 and your ROI is 50%.