The most common sources of waste stem from buying technology that isn’t needed and significantly overpaying for technology that is. Corporations that can’t predict or quantify their needs typically buy more – and therefore pay more-than necessary. Companies that effectively manage their IT spending can release anywhere from 15 to 45 percent of their total IT budget without sacrificing quality within their operations. Data storage is typically 30 to 70 percent underutilized because it’s difficult to estimate need and historically it has not been scaleable.”]
Source: https://www.csoonline.com/article/2117950/rebalancing-the-it-budget.html