IDG Contributor Network: 4 steps to doing clould ROI calculations right

I know of a company that had forecasted and budgeted for $2,000 a month cost with their cloud service provider when they moved to the cloud. Instead, about once every quarter, their bill edged over $5,000.Why were they so far off on their budgeting?Their cloud vendor’s pricing was fixed up to a maximum level of network bandwidth usage. Beyond that, the company had to pay incremental costs. When the company had built a profile of their performance and utilization requirements to use in atta