Index: firmware/App/Monitors/Conductivity.c
===================================================================
diff -u -r764e0e8c7a889f72a9b6bdced9ef08a09d72b36e -rb110edbfea44736075d89212a7529df6df64e521
--- firmware/App/Monitors/Conductivity.c	(.../Conductivity.c)	(revision 764e0e8c7a889f72a9b6bdced9ef08a09d72b36e)
+++ firmware/App/Monitors/Conductivity.c	(.../Conductivity.c)	(revision b110edbfea44736075d89212a7529df6df64e521)
@@ -40,6 +40,7 @@
 #define SIZE_OF_FLOW_ROLLING_AVG                ( CONDUCTIVITY_SAMPLE_FILTER_MS / TASK_PRIORITY_INTERVAL )              ///< Filtered conductivity moving average sample count.
 #define SIZE_OF_FLOW_TEMP_ROLLING_AVG           ( CONDUCTIVITY_TEMP_SAMPLE_FILTER_MS / TASK_PRIORITY_INTERVAL )         ///< Filtered conductivity temprature moving average sample count.
 #define RO_RR_MOVING_AVG_NUM_OF_SAMPLES         300                                                                     ///< RO rejection ratio moving average number of samples.
+#define FRACTION_TO_PERCENT_CONVERSION_FACTOR   100.0F                                                                  ///< RO rejection ratio factor to percentage conversion factor value
 
 /// Filter conductivity readings record.
 typedef struct
@@ -327,7 +328,7 @@
 
     if ( fabs(feedConductivity) >= NEARLY_ZERO )
     {
-        roRejectionRatio = 100.0F * ( ( feedConductivity - permeateConductivity ) / feedConductivity );
+        roRejectionRatio = FRACTION_TO_PERCENT_CONVERSION_FACTOR * ( ( feedConductivity - permeateConductivity ) / feedConductivity );
     }
     if ( getCurrentGenPermeateState() == FP_GENP_TANK_FILL_STATE )
     {