What is the formula for calculating earnings per share (EPS)?

Eps = (Net Profit-Dividend on Preferred Stock)/(Average Outstanding Shares)

EPS is a market prospect ratio that measure the amount of net income  earned per share ordinary shares outaoutstand. It is calculated as follows 

Earnings /Weighted average ordinary shares outstanding 

Agreed With Mr. Fahid Malik 

Net Profit / No. of Shares

net income over outstanding shares

EPS is calculated as follows:

EPS= (net income - preferred dividends) / average outstanding common shares

As an example, suppose the fiscal year 2017 net income for Bank of America (BAC). Its net income was $18.232 billion. Its preferred stock dividends were $1.614 billion. Its average outstanding common shares stood at 10.196 billion.1 This puts its EPS at:

Earnings =18.232 billion−1.614 billion

               =16.618 billion (net profit)

EPS = 16.618 Billion / 10.196 Billion = $1.63