Field change reports

Field change reports

I found this question from another user that went unanswered, but I'd like to revive it.  I have a custom field that is essentially a ranking of 1-5.  We rank various accounts in terms of the intensity of business development we're applying to them, and we keep track of how many accounts are in each rank and set goals for moving an account from one rank to the next by set criteria.  

Is there a way for me to report on how many (and which) accounts move from Rank 1 to 2 or Rank 3 to 1 and so on?  Our CRM account is synced to Zoho Reports, but I don't see any data fields in the Accounts table that would allow me to see this.  

Any help would be appreciated.