The graph below shows the average monthly change in the prices of three metals during 2014.

From the line graph, we can see the average monthly rise or fall in how much copper, nickel and zinc cost throughout 2014.

Overall

, nickel started with the highest percentage change of the

three

but ended with the lowest. Zinc started with the smallest change and ended with the highest, and copper prices fluctuated. Prices for all

three

metals dipped in June. In January the price of nickel was up

tix

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six

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per cent, but

this

dropped to negative

three

percent

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per cent

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in June, ending the year with a one

percent

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per cent

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increase in both November and December. Copper began the year with an increase of two

percent

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per cent

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and by May, the price was dropping (by slightly less than one per cent). It rose again, increasing by a percentage point in July, August and September. Zinc saw its most dramatic increase in February, with

three

per cent and the price fell in June (a one

percent

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decrease). The change, was negative until October/November when it began to rise.