diff --git a/Classes/PHPExcel/ReferenceHelper.php b/Classes/PHPExcel/ReferenceHelper.php
index 550b7f3f..e4aa9d8b 100644
--- a/Classes/PHPExcel/ReferenceHelper.php
+++ b/Classes/PHPExcel/ReferenceHelper.php
@@ -431,6 +431,7 @@ class PHPExcel_ReferenceHelper
 		while ($cellID = array_pop($aCellCollection)) {
 			$cell = $pSheet->getCell($cellID);
 			$cellIndex = PHPExcel_Cell::columnIndexFromString($cell->getColumn());
+
 			if ($cellIndex-1 + $pNumCols < 0) {
 				continue;
 			}
@@ -736,6 +737,7 @@ class PHPExcel_ReferenceHelper
 				}
 				//	Search for cell references (e.g. 'Sheet1'!A3 or C5) with or without $ absolutes (e.g. $A1 or C$5)
 				$matchCount = preg_match_all('/'.self::REFHELPER_REGEXP_CELLREF.'/i', ' '.$formulaBlock.' ', $matches, PREG_SET_ORDER);
+
 				if ($matchCount > 0) {
 					foreach($matches as $match) {
 						$fromString = ($match[2] > '') ? $match[2].'!' : '';
@@ -750,7 +752,7 @@ class PHPExcel_ReferenceHelper
 								//	Max worksheet size is 1,048,576 rows by 16,384 columns in Excel 2007, so our adjustments need to be at least one digit more
 								$column = PHPExcel_Cell::columnIndexFromString(trim($column,'$')) + 100000;
 								$row = trim($row,'$') + 10000000;
-								$cellIndex = $column.$row;
+								$cellIndex = $row . $column;
 
 								$newCellTokens[$cellIndex] = preg_quote($toString);
 								$cellTokens[$cellIndex] = '/(?<![A-Z\$\!])'.preg_quote($fromString).'(?!\d)/i';
@@ -760,13 +762,8 @@ class PHPExcel_ReferenceHelper
 					}
 				}
 				if ($adjustCount > 0) {
-					if ($pNumCols > 0) {
-						krsort($cellTokens);
-						krsort($newCellTokens);
-					} else {
-						ksort($cellTokens);
-						ksort($newCellTokens);
-					}
+                    krsort($cellTokens);
+					krsort($newCellTokens);
 					//	Update cell references in the formula
 					$formulaBlock = str_replace('\\','',preg_replace($cellTokens,$newCellTokens,$formulaBlock));
 				}
diff --git a/changelog.txt b/changelog.txt
index 052258f4..d213be5e 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -39,6 +39,7 @@ Fixed in develop branch for release v1.8.0:
 - Bugfix:   (IndrekHaav)      Work Item CP16208 - Fixed undefined variable error due to $styleArray being used before it's initialised
 - Bugfix:   (PowerKiKi)       Work Item GH-273  - ISTEXT() return wrong result if referencing an empty but formatted cell
 - Bugfix:   (PowerKiKi)       Work Item GH-270/GH-31  - Binary comparison of strings are case insensitive
+- Bugfix:   (MBaker)          Work Item GH-275  - Insert New Row/Column Before is not correctly updating formula references
 - Feature:  (amerov)                            - Implementation of the Excel HLOOKUP() function
 - Feature:  (MBaker)                            - Added "Quote Prefix" to style settings (Excel2007 Reader and Writer only)
 - Feature:  (MBaker)                            - Added Horizontal FILL alignment for Excel5 and Excel2007 Readers/Writers, and Horizontal DISTRIBUTED alignment for Excel2007 Reader/Writer