add links to Cassandra SDK commands for retrieving RU charge

Author: TheovanKraay

articles/cosmos-db/manage-scale-cassandra.md

@@ -10,7 +10,9 @@ ms.author: thvankra
 
 # Elastically scale an Azure Cosmos DB Cassandra API account
 
-There are a variety of options to explore the elastic nature of the Azure Cosmos DB's API for Cassandra. To understand how to scale effectively in Azure Cosmos DB, it is important to understand how to provision the right amount of request units (RU/s) to account for the performance demands in your system. To learn more about request units, see the [request units](request-units.md) article. 
+There are a variety of options to explore the elastic nature of the Azure Cosmos DB API for Cassandra. To understand how to scale effectively in Azure Cosmos DB, it is important to understand how to provision the right amount of request units (RU/s) to account for the performance demands in your system. To learn more about request units, see the [request units](request-units.md) article. 
+
+For the Cassandra API, you can retrieve the Request Unit charge for individual queries using the [.NET and Java SDKs](https://docs.microsoft.com/azure/cosmos-db/find-request-unit-charge#cassandra-api). This is helpful in determining the amount of RU/s you will need to provision in the service.
 
 ![Database operations consume Request Units](./media/request-units/request-units.png)