The line graph illustrates the average monthly change in prices of copper, nickel and zinc in 2014. Overall, it shows significant changes throughout the year.
It is seen that copper is one of the most stable of the three metals. Between January and March was slight decline that came back on March. In July, it grew to 1 percent, which remained up to September, then fell by half a percent in October and rose to 1.5 in December.
Nickel remained unsteady all year. The highest point in January, 6 percent, dropped considerably by March to 1 percent, with a slight dip in May. Moreover, a dramatic decrease happened in June, with the lowest point during 2014 at -3 percent. Prices gradually climbed to -1 in July and marginally fell again in October. Unexpectedly, the percentage increased sharply in November to 1, remaining the same in December.
Zinc happened to undergo a considerable spike in February that reduced modestly by June. Between July and October, the cost was pretty constant, between -1 and -0.5. The same as in the price of Nickel, it is seen unexpected surge in November of one percent but compared to Nickel, Zinc managed to climb to 2 percent, being the most expensive metal out of the three.
