diff --git a/src/specificClass.js b/src/specificClass.js
index c8bf307..38117af 100644
--- a/src/specificClass.js
+++ b/src/specificClass.js
@@ -639,7 +639,7 @@ _callMeasurementHandler(measurementType, value, position, context) {
     const {efficiencyCurve, peak, peakIndex, minEfficiency } = this.calcEfficiencyCurve(powerCurve, flowCurve);
 
     // Calculate the normalized center of gravity
-    const NCog = (flowCurve.y[peakIndex] - this.predictFlow.currentFxyYMin) / (this.predictFlow.currentFxyYMax - this.predictFlow.currentFxyYMin);
+    const NCog = (flowCurve.y[peakIndex] - this.predictFlow.currentFxyYMin) / (this.predictFlow.currentFxyYMax - this.predictFlow.currentFxyYMin); //
 
     //store in object for later retrieval
     this.currentEfficiencyCurve = efficiencyCurve;