What you see when you go into your printer's 'Properties' options will depend upon the make and model of your printer. So what I've got on my screen won't necessarily match up with what you see on yours.
With my Canon printer though, I go to 'Properties' and then click on the 'Page Setup' tab. Under 'Page Layout', there are various options, such as 'Normal', 'Borderless', 'Fit-to-Page', etc. One of them is 'Scaled'; clicking on it then brings up a box where I can enter the scale of my choice.