Factory resetting a macbook pro 13" 2012 model with 10.9.4 OS running

Hi. I have a macbook pro 13" 2012 model with 10.9.4 OS running. I want to restore it back to factory settings. I tried the command R at the boot but after downloading the os through internet, it does not allow me to install it. The error is shown that i have a newer os and cannot install it to the older one. So is there any other way to do this?

Also when i use the option key at boot up it shows Recovery 10.9 and when i click on that the mac shuts down, every time.

Thanks.