diff --git a/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/instance/addValues.st b/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/instance/addValues.st
index 9428e498..3cd7bb96 100644
--- a/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/instance/addValues.st
+++ b/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/instance/addValues.st
@@ -4,7 +4,7 @@ addValues
 	| times average count stdev |
 	times := values collect: [:v | v tracedValue].
 	count := times size.
-	average := times average.
+	average := times average roundTo: 0.01.
 	stdev := self standardDeviation: times.
 	self addMorphBack: ('{1} executions ({2} ms +/- {3})' 
 			format: {count . average . stdev}) asText asMorph
\ No newline at end of file
diff --git a/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/instance/standardDeviation..st b/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/instance/standardDeviation..st
new file mode 100644
index 00000000..256d384f
--- /dev/null
+++ b/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/instance/standardDeviation..st
@@ -0,0 +1,11 @@
+helpers
+standardDeviation: aCollection
+
+	| avg sample sum | 
+	avg := aCollection average.
+	sample := aCollection anyOne.
+	sum := aCollection inject: sample into: [ :accum :each | accum + (each - avg) squared ].
+	sum := sum - sample.
+	^ sum = 0 
+		ifTrue: [0]
+		ifFalse: [((sum / (aCollection size - 1)) sqrt) asScaledDecimal roundTo: 0.01]
\ No newline at end of file
diff --git a/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/methodProperties.json b/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/methodProperties.json
index bccba176..ba1aaabc 100644
--- a/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/methodProperties.json
+++ b/packages/Babylonian-UI.package/BPProfilingValuesMorph.class/methodProperties.json
@@ -2,4 +2,5 @@
 	"class" : {
 		 },
 	"instance" : {
-		"addValues" : "joabe 7/1/2023 16:21" } }
+		"addValues" : "pre 7/22/2024 14:01",
+		"standardDeviation:" : "pre 7/22/2024 14:02" } }