The two different pie charts give information about the share of six different brands across ten years in 2009 and 2019. In general, the sales of flat-screen TV increased sharply and became the most highest sales in 2019, while conventional TV experience sharp decrease an became the least preferred option in 2019. Furthermore, the share of mobile phone, laptop and tablet are increased substantially, whereas desktop computer’s sales declined.
In 2009, conventional TV stands out overwhelmingly as the highest sales, affecting 34% of the shares. Laptop and desktop computer exert moderate sales at 20% and 18%. Mobile phone’s sales at 15%. By contrast, Flat TV screen and tablet ranking lowest at 8% and 5% of the sales.
By 2019, the share of flat TV screen rises considerably at 27%. Approximately 26% of the sales belongs to mobile phone, which is generally incline. This figure drop further to around 19% for tablet sales. Followed by the share of laptop and desktop computer, both declined at 12%, and reaches a low of just 4% among the sales of conventional TV.