We are following Scrum process and I want to calculate how many PBIs were actually considered or added during each iteration of release? For e.g. on day 1 of Iteration1 I have 10 PBIs and added 5 more till last day of Iteration 1. So I should get planned PBIs as 15, no matter how many were removed, Done or moved to backlog / next sprint. I am able to get work items in my C# application and tried to loop through WI Revisions but I am not getting it correct.
How to achieve this either through TFS WIQL or TFS APIs?