Need help estimating the current value of laptop.

Solution
Maybe 300-350, but likely 300. At 300 it may still sit for a while, it's not so much the age of the system but the fact that it's a used out of warranty laptop with a lower end CPU. The 740m video card may save it a bit.

I sell a lot of used laptops, most of mine cost about $1,000 when new, about double yours. The last one I sold was about 3 years old and sold for under $300.
Is very simple: Plug in your make/model on eBay, then click SOLD ITEM, and eBay will show you what they were sold last 2 weeks. THAT'S THE PRICE THE MARKET IS WILLING TO PAY TODAY. What you purchased for, does not matter.
 
I tried your method but ebay didn't find the item.
P.S. I want to find out how much should I drop the price since I've been using it for 1.5 years.
 
Maybe 300-350, but likely 300. At 300 it may still sit for a while, it's not so much the age of the system but the fact that it's a used out of warranty laptop with a lower end CPU. The 740m video card may save it a bit.

I sell a lot of used laptops, most of mine cost about $1,000 when new, about double yours. The last one I sold was about 3 years old and sold for under $300.
 
Solution