Script to find the area of shapes in Adobe Illustrator

GetShapeArea.jsx

/* Save this file with a jsx extension and place in your
Illustrator/Presets/en_US/Scripts folder. You can then
access it from the File > Scripts menu */

var decimalPlaces = 3;

if (app.documents.length > 0) {

	if (app.activeDocument.selection.length < 1) {
		alert('Select a path');
	} else if (app.activeDocument.selection[0].area) {
		// Individual Items
		var objects =  app.activeDocument.selection;
	} else if (app.activeDocument.selection[0].pathItems) {
		// Group/Compound Shape
		var objects = app.activeDocument.selection[0].pathItems;
	} else {
		alert('Please select a path or group.');
	}

	// Collect info
	var totalArea = 0;
	for (var i=0; i<objects.length; i++) {
		if (objects[i].area) {
			var totalArea = totalArea + objects[i].area;
		}
	}

	// Conversions
	var ppi = 72;
	var areaIn = totalArea / ppi / ppi;
	if (areaIn < 0) var areaIn = -areaIn;
	var areaCm = areaIn * 6.4516;

	// Display
	alert('Shape Area\
	' + areaIn.toFixed(decimalPlaces) + ' in² \
	' + areaCm.toFixed(decimalPlaces) + ' cm² \n\
	' + i + ' shapes');

}

Notice this, look how they are looking to be the same in terms of structure. The outcome is different though, i dont get why that is?!

Check the sub items, i noticed that a shape can be build in different manner and looking the same. The way i am calculating compounds with negative shapes is by checking the polarity. Normally a cutout is negative. But it seems the most outer shape can also be negative and still show the same. Look at the images below. They look the same, but the outer shape has different polarity. Its kinda weird that its actually showing the shape correctly

Example negative polarity on outer shape

Example positive polarity on outer shape

@schroef are you only finding this with the design above or have you seen the same in other cases? I am not sure I can replicate the error.