The line graph demonstrates the alteration in prices of copper, nickel and zinc every month in 2014.
Overall, while zinc’s and copper’s price decreased before they were highest in the beginning of the year , zinc had doubled its price in 12 month.
Between January and April, Nickel and Copper preserved a similar change. In January Nickel started in its peak, %6, than decreased to %1 in May. After staying stable for one month its price decreased again to approximately %0.5 while Copper’s price was %2 then falled back to around %0.5 and decreasing again to around %-0.5. In June, despite Copper had an increase to %1, Nickel had a dramatic decrease to %-3 and climbed to %-1 again in July andremained there for 3 months similarly to Copper. After a fluctuate it’s escalated to %1 in November and stayed stable for the end of the year while Copper increased to approximately %1.5.
On the other hand Zinc had 2 dramatic increase in February and November. First one was %1 in January and climbed to %3 in February. After a serious decrease over 4 moths to %-1, it’s dramaticly risen second time and its top price to %2 in December.