update pricing Q&A

Author: halkazwini

articles/network-watcher/traffic-analytics-faq.yml

@@ -7,7 +7,7 @@ metadata:
   ms.author: halkazwini
   ms.service: network-watcher
   ms.topic: faq
-  ms.date: 04/24/2024
+  ms.date: 07/08/2024
 title: Traffic analytics frequently asked questions (FAQ)
 summary: |
   This article provides answers to the most frequently asked questions about traffic analytics in Azure Network Watcher.  
@@ -127,10 +127,8 @@ sections:
       - question: |
           How is traffic analytics priced?
         answer: |
-          Traffic analytics is metered. The metering is based on processing of flow log data by the service, and storing the resulting enhanced logs in a Log Analytics workspace. 
-          
-          For example, as per the [Network Watcher pricing](https://azure.microsoft.com/pricing/details/network-watcher/) and [Azure Monitor pricing](https://azure.microsoft.com/pricing/details/monitor/), considering West Central US region, if flow logs data stored in a storage account processed by traffic analytics is 10 GB and enhanced logs ingested in Log Analytics workspace is 1 GB then the applicable charges are:
-          10 x 2.3$ + 1 x 2.76$ = 25.76$
+          Traffic analytics is metered. The metering is based on processing of raw flow log data by the service. For more information, see [Network Watcher pricing](https://azure.microsoft.com/pricing/details/network-watcher/).          
+          Enhanced logs ingested in Log Analytics workspace can be retained at no charge for up to first 31 days (or 90 days if Microsoft Sentinel is enabled on the workspace). For more information, see [Azure Monitor pricing](https://azure.microsoft.com/pricing/details/monitor/).
           
       - question: |
           How frequently does traffic analytics process data?