Trend analysis is a technique used in technical analysis to predict future stock prices or sales based on past data. It assumes past trends will continue. The document defines trend analysis and provides an example comparing sales, stock, and earnings before tax (EBT) from 2008-2012 for a company. Trend percentages are calculated by dividing each year's figure by the base year (2008) figure and multiplying by 100. Graphs show all metrics increasing over time, with sales up 200% and EBT up 209% by 2012 compared to 2008 levels. Trend analysis can be used to compare metrics over time periods, locations, groups, make projections, and assess performance versus standards or other organizations.