Learn Editor: Update cost-logs.md

Author: DaleKoetke

articles/azure-monitor/logs/cost-logs.md

@@ -24,7 +24,7 @@ The default pricing for Log Analytics is a pay-as-you-go model that's based on i
 
 ## Data size calculation
 
-Data volume is measured as the size of the data that will be stored in GB (10^9 bytes). The data size of a single record is calculated from a string representation of the columns that are stored in the Log Analytics workspace for that record. It doesn't matter whether the data is sent from an agent or added during the ingestion process. This calculation includes any custom columns added by the [logs ingestion API](logs-ingestion-api-overview.md), [transformations](../essentials/data-collection-transformations.md) or [custom fields](custom-fields.md) that are added as data is collected and then stored in the workspace.
+Data volume is measured as the size of the data sent to be stored and is measured in units of GB (10^9 bytes). The data size of a single record is calculated from a string representation of the columns that are stored in the Log Analytics workspace for that record. It doesn't matter whether the data is sent from an agent or added during the ingestion process. This calculation includes any custom columns added by the [logs ingestion API](logs-ingestion-api-overview.md), [transformations](../essentials/data-collection-transformations.md) or [custom fields](custom-fields.md) that are added as data is collected and then stored in the workspace.
 
 >[!NOTE]
 >The billable data volume calculation is generally substantially smaller than the size of the entire incoming JSON-packaged event. On average, across all event types, the billed size is around 25 percent less than the incoming data size. It can be up to 50 percent for small events. The percentage includes the effect of the standard columns excluded from billing. It's essential to understand this calculation of billed data size when you estimate costs and compare other pricing models.