Profits with tax in ecommerce module


I’m using on my site piwik with tracking ordes. In JavaScript i putted information about taxes, but piwik in reports shows profits including tax. Is it possible to show it without taxes?

				"001", // (required) SKU: Product unique identifier
				"Autopilot 10GB", // (optional) Product name
				"4stream" // (optional) Product category. You can also specify an array of up to 5 categories eg. ["Books", "New releases", "Biography"]
				/*9.0, // (recommended) Product price
				1 // (optional, default to 1) Product quantity*/

			"'.date('HGsdmY').'", // (required) Unique Order ID
			9.0, // (required) Order Revenue grand total (includes tax, shipping, and subtracted discount)
			4.50, // (optional) Order sub total (excludes shipping)
			4.50, // (optional) Tax amount
			0, // (optional) Shipping amount
			false // (optional) Discount offered (set to false for unspecified parameter)

Set tax=0 if you wish not to track tax