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

The chart provides information about the average monthly change in the prices of copper, nickel and

zinc

in 2014.

Overall

, it can be seen that the prices of three metals witnessed a decrease in the first six months,

then

remained static from July to September, before increasing in the

last

months.

Moreover

, nickel started with the highest

percentage

variation of three but ended up in the lowest position, the opposite is true for

zinc

. Starting at a 6%

percentage

at the beginning of the period, the

percentage

revolution of nickel plummeted to -3% in June and stayed unchanged at -1% for three months later, prior to considerably increasing to 1 in December. From January to February, in comparison to the proportion variation of copper, which witnessed a slight decrease to 1%, the figure for

zinc

reached a peak of 3%. There was a two-fold decrease in the

percentage

of change of

zinc

in June, after which it remained stable at around -0.5% from July to September, before recovering to 2%

at the end

of the period. Regarding copper, it reached its lowest point at around -0.5% in June. After stabilizing from July to September, the figure increased marginally to finish at 1.5%, despite a negligible dip in October.