What is the return condensate percentage in feedwater if the makeup conductivity is 834 µ ohms, the feedwater conductivity is 185 µ ohms, and the condensate conductivity is 65 µ ohms?

RC% (MC-FC) / (MC-CC)
                                    RC% = (MC-FC) / (MC-CC)
                                    RC% = (834 - 185) / (834 - 65)
                                    RC% = 84.40%
                                    0.84
Where,
                                    RC% return condensate %
                                    MC makeup conductivity ( µ ohms)
                                    FC        feedwater conductivity ( µ ohms)
                                    CC        condensate conductivity ( µ ohms)