One of the most important things in a cost management tool is the ability to see your costs per resource. For the common services of each cloud provider, we have a special section that easily provides the cost of each resource.
For example, for AWS you can see the cost of each S3 bucket, RDS DB and EC2.
For RDS we can see the usage, for example:
Of course, you can also use the Cost & Usage Explorer and use the deep dive ability to drill down to the resource level. In the Cost & Usage Explorer you can drill down for each service that you are using. See more details on how to use Cost & Usage Explorer here.