Calculates the percentage of a figure, and shows the result along with the plus total (percentage added) and minus total (percentage deducted).
You can copy the result to the clipboard by clicking on it, and you can launch the Calculator.app in your Applications folder with the click of a button.
To download this free software, click the button above and wait for the download to begin. Once downloaded, mount the DMG file and drag or copy the enclosed application to your Applications folder.