Oftentimes when organizations purchase a variety of EC2 Reserved Instances in AWS, they do it with the hope of saving some money.  Unfortunately, many of these companies lack a way to confirm whether this is actually saving costs or if, worse, those AWS Reserved Instances are costing them more money each month.

Understanding Reserved Instances

Reserved Instances is an option that Amazon provides for users to pre-pay for computing power at a reduced cost from the standard On-Demand model.  AWS and others widely market this purchase option as sav