Expected increase in FG from using DME instead of sugar?

I've made up the Brewferm Ambiorix kit which calls for 1075g of sugar to be added. Instead, I used 800g of light spray malt and 300g of glucose.

The kit says the beer should ferment down to 1.010 but I assume using the DME means that I can expect the FG to be somewhat higher. Does anyone know a way to predict what my actual FG should be (especially as it now appears 'stuck' at 1.018 from an OG of 1.054 - though as it's only 48 hours since I pitched the yeast, I'm not panicking yet).

It's not worth the effort of doing anything yet.
How can you tell it's stuck if you don't leave it another couple of days.

So, leave it an extra couple of days then decide if it's stuck.
Good call on the DME instead of sugar.:rockin:

Don't call it stuck for at least a week. You should hit 1.012-1.014