How to reconcile daily sales summary data with Status Notification data

Hi,


I am trying to reconcile the daily sales summary for trial purchase('Customer Price'="0.00" AND Subscription="New") and Status Notification event received from Apple with type="INITIAL_BUY". On doing this, there is some discrepancies in the count(3 to 10%).


Could someone provide more insight on how to tally this count between notification vs daily sales summary report?

Also what is the timezone used in Sales and Trends report generated in http://itunesconnect.apple.com/.?


Thanks & Regards

Shan