The line graph provides the information about the average cost of four different mobile phones – Domo, Lex, Sim TX and Alpha. Overall, while the figure for Sim Tx’s phones showed downward trend, the reverse was true for others. The highest cost of mobile phones was demonstrated by Domo, whereas the most significant increase was shown by Alpha.
Focusing first on the higher costs, Domo had the highest average cost of mobile phones in January (15 euros). Over the first five months, its cost increased to 20 euros in May and remained stable until June. In July, its peaked at 25 euros but declined to around 23 euros by September. Lex had the second-highest average cost at around 13 euros, but it dropped to 10 euros in February. After February, its cost started to increase steadily, raising to its initial cost (13 euros) and cost almost 15 euros in May. In July, it cost just more 15 euros and finished at 19 euros.
As for lower costs, Sim TX and Alpha had lower average costs. Sim TX stood at around 9 euros at the beginning and after a slight decline it reached 10 euros in May. In April, it increased to 11 euros and stayed stable until April, then peaked at just below 15 euros. However, then, it started to decline steadily, declining to 10 euros in July and finished at around 8 euros. Alpha ranked last (5 euros) and showed no change after the first month. From March, its cost started to rise, increasing to 6 euros in April before declining back to its initial cost (5 euros) in June. After June, its cost surged dramatically, reaching 10 euros in July, 15 euros in August and ended up at 25 euros.