Applying Scale

Hi folks. I'm sure Corel can do this, but I may be using the wrong terminology. To be honest, I think I found how to do this before, but can't find it now.

Let's say I want to apply the scale of an object. So I select it, change the size in the toolbar at the top to 80% in the horizontal and vertical axis. Let's say now I want to scale the vertical axis 103%. I don't want to scale it 103% of its original size. I want to scale it 103% of the 80% scale.

In other programs I've used, you can apply the scale in between those two scale steps. So I would scale it 80% and apply the scale. When I apply the scale, it now reads 100%, but it is actually still 80% of its original size. How do I do this in CorelDRAW?