The pie chart shows worldwide mobile phone sales for five brands (Sony, Motorola, Nokia, Samsung and other) in percentages in 2005, whereas
The bar chart providés key information about 2002 to 2013 display global sales of the to five mobile phone brands. The units are measured in millions. Overall, it is clear from the graph that Samsung sales out perfom all competing companies during the period. In addition, both the Samsung and Nokia have seen steady growth over the years, whereas other startups have seen little change over the period. According to what is shown, the Samsung and Nokia during the period between 2009 and 2013, there was significant different in the sales rate. While in 2011 both companies witnessed a study change in their total sales ratio. Moreover, the graph shows that in 2013, Samsung's phone sales rose to a legendary level.in terms of Apple , LG and ZTE,theye are considered as startups also the bar chart shows that LG has the highest sales in 2009. While ZTE company has not change over the past years and has remined constant. Finally,Apple is considered to have achieved great results over the past years.