Summary Reporting

Is it possible to build a summary report field that does a simple calculation of the values summarized?

Example: I have this information already in a summary because the information is based on dates for each step or quality. 


Summarize -
# of Records:
Then, Records Submitted:
Then, Records Approved:​

I'd like to be able to add an in-report formula field to calculate the percentage of Submitted records that are approved. 
Submitted to Approved Percentage =  (Total Approved / Total Submitted)

So the report would like something like:

                       # of Records       Submitted      Approved      Submitted to Approved Percentage
Team​ 1          400                       200                 100                  50%
Team 2          600                       500                 400                  80%
Team 3          400                       200                 50                    25%

Is this possible?

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Chris
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