The common pricing options for Azure services are:
A common way to estimate cost is by considering workloads on a peak throughput. Under consistently high utilization, consumption-based pricing can be less efficient for estimating baseline costs when compared to the equivalent provisioned pricing. PaaS and serverless technologies can help you understand the economy cutoff point for consumption-based pricing.
Cosumption based model means that customers only pay when they use resources, as such they have no upfront cost associated. Because of that you can create resources at any time and delete them at any time, so you don’t waste any resources. Once resources are deleted, customers stop paying.