The above question is the intuitive experience of analyzing through the performance trend chart. Many students blurted out the four "yes, right, right, right". Yes, the basic principle of trend analysis is so simple that almost everyone can use it. 1. Make it clear that an indicator is positive/negative For example, in this question, sales performance is a positive indicator, and everyone hopes that the more sales, the better; therefore, if the positive indicator grows day by day, it means that the trend is improving, and if it becomes smaller every day, it means the trend is not good. 2. Collect data and observe the trend of indicators Because it has been clear that "the higher the sales indicator, the better", so just observe the data, we see that it is getting better day by day, so we can conclude that the sales trend is improving.
Below you can analyze why sales are so good; you can see that it is simple, 90% of online articles and data analysis courses are taught in this way. However, this answer is wrong. Because there is no consideration at all about the sales performance of what industry and product. The sales of different industries and products will show different sales trends within a certain period of time; for example, sales of food, drink and entertainment are often concentrated mobile number list on weekends and will show cyclical fluctuations on a weekly basis; for example, 3C electronic products, new product launches are the most important. When it is hot, there will be signs of gradual decline afterward - when the sales trend increases the time dimension, it will show regularity. Doing data analysis, even if you don't know the trend analysis method, is a waste.
Therefore, the first three questions of this question are all "Yes, yes, yes"; the fourth question is "Not sure" - if you want to be sure, you still need at least, on the basis of the two steps that have been done, more Do two steps. 3. Establish trend benchmarks and establish judgment standards There are two ways to set a benchmark. If you are familiar with the industry, you can draw a general trend chart directly according to the characteristics of the industry. If you are unfamiliar, you can extend the time forward and look at the trends of the previous weeks. Of course, if you want to observe the trend, it is best to draw three charts: year-on-year, month-on-month, and three-year comparison; this is the most accurate way to avoid the impact of short-term fluctuations (by the way, why everyone is doing reports) At times, there are often three indicators: year-on-year, month-on-month, and three-year ratio, and statistics are divided into three calibers: daily, weekly, and monthly, in order to avoid short-term effects and observe whether the trend is normal).