Net Change, also known as net price change, is the difference between the current price of a stock or other financial instrument and its previous closing price. It is typically represented as a dollar value and can be positive or negative. A positive net change means that the stock has increased in value since the previous close, while a negative net change means that it has decreased.Net change is commonly used in stock market analysis to quickly see how a particular stock or index is performing over a certain period of time. It can also be used to compare the performance of different stocks or indices.Net change is also commonly used in other financial markets such as currency and commodity trading. For example, in the forex market, the net change in the exchange rate of a currency pair is the difference between the current rate and the previous rate.Net change is an important metric for investors and traders as it can provide insight into market trends and the overall performance of a stock or other financial instrument. However, it is important to note that net change alone should not be used to make investment decisions, and should be considered in conjunction with other financial and market analysis.