In the part of "Result Analysis data" in the result screen after RA operation, there is a field named L(r). 

List of RA caculated values:

R(p) = Planned revenue for valuation
 
C(p) = Planned costs for valuation
 
M(p) = Planned costs for complaints and commissions for valuation
 
S(p) = Planned special costs (cost of sales = actual costs) for valuation
 
L(real) = Realized loss
 
N(p) = Planned values not taken into account
 
R(a) = Actual revenue
 
C(a) = Actual costs
 
M(a) = Actual cost of complaints and commissions
 
S(a) = Actual special costs (cost of sales = actual costs)
 
N(a) = Actual values not taken into account
 
D(a) = Down payt
 
C(c) = Calculated costs
 
R(c) = Calculated revenue
 
C(av) = Valuated actual costs
 
M(av) = Valuated cost of complaints/commissions
 
POC = Percentage of completion
 
C(r) = Reserves for unrealized costs
 
R(r) = Revenue surplus
 
C(z) = Work in process (capitalized costs)
 
R(z) = Revenue in excess of billings
 
M(r) = Reserves for cost of complaints and commissions
 
COS = Cost of sales
 
R(n) = Revenue aff. net income
 
SAP PS Tips by : Pieter LP van Sittert

Fast Links:
Get help for your SAP PS problems
Do you have a SAP PS Question?

SAP Books and Training CBT
SAP Project System, Functional, Basis and ABAP Programming Reference Books

SAP Project System Tips
SAP PS Tips and Project System Discussion Forum

Best regards,
SAP Basis, ABAP Programming and Other IMG Stuff
http://www.sap-img.com