Question How much is this used laptop worth

[ryand18]

I'm planning on selling my Gaming laptop to buy a desktop but i'm not exactly sure how much it is worth and a friend told me to ask here

It is an Acer Predator Helios 300. Model number: ph317-51-73E7

Specs are:
17.3 inch screen
Gtx 1050ti
Intel I7-7700HQ @ 2.8ghz
16gb ram
1128 GB storage (HDD)

There is a bit of wear and tear but nothing that isn't functional.
If any more info is required just ask.

Thanks guys.

 

[Balolarry]

Check on used laptop stores to have an idea of how much its costs.
Check ebay, gumtree, amazon etc