# Price Earnings Ratio (PE Ratio):
## Definition:
**Price earnings ratio (P/E ratio)** is the
ratio between market price per equity share and earning per share.
The ratio is calculated to make an estimate of
appreciation in the value of a share of a company and is widely used by
investors to decide whether or not to buy shares in a particular company.
## Formula of Price Earnings Ratio:
Following formula is used to calculate price
earnings ratio:
Price Earnings Ratio = Market price
per equity share / Earnings per share
## Example:
The market price of a share is $30 and earning
per share is $5.
**
Calculate
price earnings ratio.**
###
**Calculation:**
Price earnings ratio = 30 / 5
= 6
The market value of every one dollar of earning is six times or $6. The
ratio is useful in financial forecasting. It also helps in knowing whether
the share of a company are under or over valued. For example, if the earning
per share of AB limited is $20, its market price $140 and earning ratio of
similar companies is 8, it means that the market value of a share of AB
Limited should be $160 (i.e., 8 × 20). The share of AB Limited is,
therefore, undervalued in the market by $20. In case the
price earnings ratio of similar companies is only 6, the value of the share of AB
Limited should have been $120 (i.e., 6 × 20), thus the share is overvalued by
$20.
## Significance of Price Earning Ratio:
**Price earnings ratio** helps the investor in deciding whether to buy or not to
buy the shares of a particular company at a particular market price.
Generally, higher the price earning ratio the better it is. If the P/E ratio
falls, the management should look into the causes that have resulted into the
fall of this ratio. |