If you bought all of your stock in a single transaction, it's easy to determine how your investment is performing. Simply look at the current share price and compare it to the price you paid. However, ...

When analyzing a company's results for investment purposes or in order to provide a valuation of the business, accountants will take average earnings or net income into account. A simple average of ...

If you bought a different number of shares with each trade, a simple average of the prices won't be accurate. If you've bought a certain stock over a series of transactions, then it can be useful to ...

Averages are typically computed as the sum of values divided by the number of data points. However, averages are also calculable from percentages. As an example, grades in a course might be weighted ...

To calculate a price-weighted average, sum the stock prices and divide by the number of stocks. This average reflects changes in higher-priced stocks more than lower-priced ones. Use price-weighted ...

On the other hand, if Intel stock experienced the same 20% move to $34.56, it would translate to a price-weighted average of $60.14, or a move of just 3.3%. So Apple's 20% move has more than three ...