The P/E ratio tells analyst how much an investor in common stock pays per dollar of current earnings. Cisco Systems Inc.'s P/E ratio increased from 2013 to 2014 but then slightly declined from 2014 to 2015.
1 For patients not covered by health insurance, a PET scan typically costs an average of about $4,900 for a PET scan of the whole body to $6,700 for the brain and $6,800 for the heart, according to NewChoiceHealth.com.
The average cost for cat x-ray is $100 to $250 per x-ray, but each additional x-ray may cost less than this. The main factor is often which body part needs to be x-rayed. X-ray for the extremities and smaller areas of the body can cost less than the abdomen or chest.