Navigate to Jcurve Payroll> Pay Reports > PR- Employee Pay Summary Results
Click on Edit this search 
Under the results tab :
Show Totals = Checked 
Field = Date Created
Summary Type = Group
Function = Month
Search Title = PR-Employee Pay Summary Monthly
Click on "save As"
The new report will be created showing monthly Totals Per Employee:
If you do not need the monthly per employee then you can remove the Name field in the Results Tab.
This is how your Results Tab should Look : 