The current cost is retrieved from Azure as part of the recommendation as a current monthly cost and we multiply it by 12 on Umbrella side.

RI purchase recommendations are based on customer historical usage. These recommendations are calculated by analyzing all incurred usage eligible to be covered by an RI (e.g. On-Demand usage) and using our unique algorithms to simulate possible combinations of RI’s that would cover that usage.

Identifying VM instances with low CPU. For example when the daily average CPU is less than 1% and network traffic in/out is lower than 10MB.

Identify VMs that are stopped for at least 7 days (subject to preferences) but still carry additional charges.