An accuracy of 74% in CR (OG13) is fair enough if you have done it for the first time.
Practising more from other books such as Verbal Review 2nd Edition will help you further increase your accuracy.

Go ahead and give a mock test and check your results.

Thank you Sahil. I will start with Verbal Review 2nd Edition. Can you let me know what is considered to be as a good percentage ??? Like everybody, I also want to break the 700 barrier. So approximately what should be my accuracy ??

Hi suheb,

I am too aiming for a score around 700. In my opinion, if you are able to maintain the same accuracy in your mock tests and on the real exam, then you have a good chance of getting 700.
But, usually on the mocks and specifically on the real exam, your accuracy might dip because you would already have been exhausted by the AWA, IR and quant section.

Give a mock and see for your self.