How do I calculate profits when trading in stocks

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This question is one of the common questions among beginners in stock trading, although it cannot be answered with a typical answer or specific points through which the trader can calculate his profits, as the profits and returns resulting from stock trading have many forms and depend on several variable and varying factors according to the market condition, its trends, price movement, etc., and the value of potential profits from stock trading can be calculated from more than one perspective as follows:
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Stock ownership profits: Known as "return on acquisition", and referred to by the symbol HPR. The return on acquisition is calculated by finding the value of the difference between the previous price of the stock and its current price. This is after adding the value of the cash dividends received.
Earnings per share: Referred to as EPS, it is the total net income divided by the total number of shares.
Unrealized earnings: Referred to as Unrealized P/L, it is calculated in a simple way. It is the difference between the purchase price of the share and its current price.
Realized earnings: Referred to as Realized P/L. It is the result of subtracting the selling price of the share from its purchase price after adding the value of commissions.