What is the percentage of composition in coin metal ?
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The alloy remained 95 percent copper and 5 percent zinc until 1982, when the composition was changed to 97.5 percent zinc and 2.5 percent copper (copper-plated zinc). Cents of both compositions appeared in that year.
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The common cent in circulation today uses 97.5 percent zinc and 2.5 percent copper. This composition has changed tremendously since 1837.
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