In general, the stock price has increased because the expected earning was $0.52 per share but the actual earnings were $0.83. therefore, we can say that stock prices have increased. moreover, there are other factors that may affect the stock price. But in this case. A positive surprise in the earnings per share results in stock price going up.
In the payback, we analyze in how many years the invested amount is recovered. The computation is shown below:
In year 0 = $1,150 (Initial investment)
In year 1 = $500
In year 2 = $500
In year 3 = $500
If we sum the first 2 year cash inflows than it would be $1,000
Now we deduct the $1,000 from the $1,150 , so the amount would be $150 as if we added the fourth year cash inflow so the total amount exceed to the initial investment. So, we deduct it
