diff --git a/migration/i2.1/oracle/201504151752_IDEMPIERE-476.sql b/migration/i2.1/oracle/201504151752_IDEMPIERE-476.sql
new file mode 100644
index 0000000000..881079225e
--- /dev/null
+++ b/migration/i2.1/oracle/201504151752_IDEMPIERE-476.sql
@@ -0,0 +1,35 @@
+SET SQLBLANKLINES ON
+SET DEFINE OFF
+
+-- IDEMPIERE-476 Report Engine related bugs
+-- 15/04/2015 05:50:45 PM COT
+UPDATE AD_Element SET Name='Calculate Maximum (↑)',Updated=TO_DATE('2015-04-15 17:50:45','YYYY-MM-DD HH24:MI:SS'),UpdatedBy=100 WHERE AD_Element_ID=2207
+;
+
+-- 15/04/2015 05:50:45 PM COT
+UPDATE AD_Column SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Element_ID=2207
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_Process_Para SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.', AD_Element_ID=2207 WHERE UPPER(ColumnName)='ISMAXCALC' AND IsCentrallyMaintained='Y' AND AD_Element_ID IS NULL
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_Process_Para SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Element_ID=2207 AND IsCentrallyMaintained='Y'
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_InfoColumn SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Element_ID=2207 AND IsCentrallyMaintained='Y'
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_Field SET Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Column_ID IN (SELECT AD_Column_ID FROM AD_Column WHERE AD_Element_ID=2207) AND IsCentrallyMaintained='Y'
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_PrintFormatItem SET PrintName='Calc Max', Name='Calculate Maximum (↑)' WHERE IsCentrallyMaintained='Y' AND EXISTS (SELECT * FROM AD_Column c WHERE c.AD_Column_ID=AD_PrintFormatItem.AD_Column_ID AND c.AD_Element_ID=2207)
+;
+
+SELECT register_migration_script('201504151752_IDEMPIERE-476.sql') FROM dual
+;
+
diff --git a/migration/i2.1/postgresql/201504151752_IDEMPIERE-476.sql b/migration/i2.1/postgresql/201504151752_IDEMPIERE-476.sql
new file mode 100644
index 0000000000..2f6cb4590b
--- /dev/null
+++ b/migration/i2.1/postgresql/201504151752_IDEMPIERE-476.sql
@@ -0,0 +1,34 @@
+SET CLIENT_ENCODING TO 'UTF8';
+
+-- IDEMPIERE-476 Report Engine related bugs
+-- 15/04/2015 05:50:45 PM COT
+UPDATE AD_Element SET Name='Calculate Maximum (↑)',Updated=TO_TIMESTAMP('2015-04-15 17:50:45','YYYY-MM-DD HH24:MI:SS'),UpdatedBy=100 WHERE AD_Element_ID=2207
+;
+
+-- 15/04/2015 05:50:45 PM COT
+UPDATE AD_Column SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Element_ID=2207
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_Process_Para SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.', AD_Element_ID=2207 WHERE UPPER(ColumnName)='ISMAXCALC' AND IsCentrallyMaintained='Y' AND AD_Element_ID IS NULL
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_Process_Para SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Element_ID=2207 AND IsCentrallyMaintained='Y'
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_InfoColumn SET ColumnName='IsMaxCalc', Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Element_ID=2207 AND IsCentrallyMaintained='Y'
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_Field SET Name='Calculate Maximum (↑)', Description='Calculate the maximum amount', Help='Calculate the Maximum (↑)  of the data if the field is numeric, otherwise maximum length of the field.' WHERE AD_Column_ID IN (SELECT AD_Column_ID FROM AD_Column WHERE AD_Element_ID=2207) AND IsCentrallyMaintained='Y'
+;
+
+-- 15/04/2015 05:50:46 PM COT
+UPDATE AD_PrintFormatItem SET PrintName='Calc Max', Name='Calculate Maximum (↑)' WHERE IsCentrallyMaintained='Y' AND EXISTS (SELECT * FROM AD_Column c WHERE c.AD_Column_ID=AD_PrintFormatItem.AD_Column_ID AND c.AD_Element_ID=2207)
+;
+
+SELECT register_migration_script('201504151752_IDEMPIERE-476.sql') FROM dual
+;
+
diff --git a/org.adempiere.base/src/org/compiere/print/PrintDataFunction.java b/org.adempiere.base/src/org/compiere/print/PrintDataFunction.java
index 0a331ebdae..ddba97f545 100644
--- a/org.adempiere.base/src/org/compiere/print/PrintDataFunction.java
+++ b/org.adempiere.base/src/org/compiere/print/PrintDataFunction.java
@@ -137,10 +137,10 @@ public class PrintDataFunction
 				mean = mean.setScale(4, BigDecimal.ROUND_HALF_UP);
 			return mean;
 		}
-		//	Variance = sum of squares - (square of sum / count)
+		//	Variance = ( sum of squares - (square of sum / count) ) / count
 		BigDecimal ss = m_sum.multiply(m_sum);
-		ss = ss.divide(count, 4, BigDecimal.ROUND_HALF_UP);
-		BigDecimal variance = m_sumSquare.subtract(ss);
+		ss = ss.divide(count, 10, BigDecimal.ROUND_HALF_UP);
+		BigDecimal variance = m_sumSquare.subtract(ss).divide(count, 10, BigDecimal.ROUND_HALF_UP);
 		if (function == F_VARIANCE)
 		{
 			if (variance.scale() > 4)