The purchase of load balancing fees include Instance type configuration fee ， Bandwidth usage fee as well as Duration 。

• Instance type configuration fee

In the load balancing instance, different configurations have different performance and charge different configuration usage fees.

• Bandwidth usage fee

The bandwidth usage fee charged by the load balancing instance for external access through the public network.

• Duration

Different usage fees will be charged for different hours on a monthly basis.

Total expenses =(Instance type configuration fee+bandwidth usage fee) x usage duration