If your EmployeeType has limited data then you can do it quite easily...
Create a RunningTotal each for EmployeeType
(A)
FieldToSummarize -> Esalary
TypeOfSummary -> Sum
Evaluate -> Use a Formula (Etype='Contr.')
Reset -> Never
(B)
FieldToSummarize -> Esalary
TypeOfSummary -> Sum
Evaluate -> Use a Formula (Etype='Reg.')
Reset -> Never
(C)
FieldToSummarize -> Esalary
TypeOfSummary -> Sum
Evaluate -> Use a Formula (Etype='Sal.')
Reset -> Never
Place your A,B,C fields in your Report Footer section
Now you have your summarized values.. about your labels.. you can insert Text Objects to label them.