Which AWS service or tool should the company use to meet these requirements?

Explanations:

The AWS Pricing Calculator allows users to estimate the monthly costs of AWS services, including Amazon EC2 instances and associated storage, by providing various pricing options and configurations.

AWS Compute Optimizer helps optimize resource usage by recommending optimal instance types based on historical usage but does not provide cost estimations.

AWS Trusted Advisor offers best practices for AWS accounts but does not specifically provide detailed cost estimations for future service usage.

AWS Application Migration Service facilitates the migration of applications to AWS but does not provide cost estimation functionalities for future instances.