A percentage change calculator is a valuable tool for quantifying the difference between an initial and a final value, expressing this difference as a percentage increase or decrease. To calculate the percentage change, subtract the initial value from the final value, divide the result by the absolute value of the initial value, and then multiply by 100. This method is widely used in various fields, including finance, to assess changes in stock prices or investment values; in economics, to evaluate shifts in economic indicators; and in everyday scenarios, such as determining the percentage increase or decrease in expenses. Utilizing a percentage change calculator simplifies these computations, providing quick and accurate results.