Sold my GMAT Kaplan Premier Program Book

For Rs. 400 today.

Don't remember how much I had bought it for (I suppose about Rs. 500-600)..

So the balance sheet now stands at -

Book Cost Price Selling Price Difference
---- ------------- ------------- ----------
OG 1800  1300  -500
Kaplan  550 (approx)  400  -150
 ------------- ------------- ----------
 2350  1700  -650

My target was to make 3800 by selling my GMAT prep material after the exam. So I need to make

3800 - 1700 = 1100

more by selling The OG supplements and Princeton Guide.

Seems doable!