Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2021-02-23, Stock:COST, The news for the past five days is as follows:
2021-02-16: nan
2021-02-17: NEWS1: Better Buy: Costco vs. Kroger.
2021-02-18: NEWS1: Walmart just dealt a major blow to other retailers.
2021-02-19: NEWS1: Does Costco Wholesale (NASDAQ:COST) Have A Healthy Balance Sheet?.
2021-02-22: NEWS1: How COVID-19 changed the retail landscape.NEWS2: Look out Costco — Sam’s Club is booming amid pandemic.NEWS3: This Costco rival is booming.

Answer: Decrease