We're using Zoho CRM to record different incoming enquiries and assigned them to different users. I wanna have a report that can indicate the number of leads have been assigned to certain users/ owners.

For example, my role is an administrator and all new leads are originally owned by Admin. Atter reviewing their requirements, l'll assign the lead by changed the lead owner therefore at the end of the month I wanna know how much leads have been switch from Admin to other users. 

Is there any way I can do so?