Congratulations! You were just hired at Sephora to analyze sales data. Just in time for Valentine's Day! You have access to what products were purchased when they were purchased, and who purchased them. Your first task is to look over the data from the last four months (November - February). As you look through the data, you notice a giant increase in sales and then a giant drop in sales within those months. Your boss wants you to identify patterns and trends to figure out what happened.

Answer the following:

Describe one way that Sephora could use either descriptive, diagnostic, predictive, or prescriptive analytics to understand the increase and decrease in sales over the four-month period.