How much am I billed if I have enabled auto-scaling?

If you enable auto-scaling, you will be able to define a minimum and a maximum number of machines that are available for your pool.

If the workload of your infrastructure is low, only the minimum number of machines will be running. If the load grows, additional machines are started automatically up to the maximum number of machines in the pool, to handle the workload on your application. If the load decreases, these additional machines will be stopped automatically.