Calculate the total number of years that each of the geologic eras lasted, rounding to the nearest 100 million. Then, calculate each of these values as a percentage of the total 4.6 billion years of Earth's history. Round your answer to the units place.

Eoarchean Era - 400 million years - 8,7% of Earth's history.

Paleoarchean Era - 400 million years - 8,7% of Earth's history.

Mesoarchean Era - 400 million years - 8,7% of Earth's history.

Neoarchean Era - 300 million years - 6,5% of Earth's history.

Paleoproterozoic Era - 900 million years - 19,6% of Earth's history.

Mesoproterozoic Era - 600 million years - 13,0% of Earth's history.

Neoproterozoic Era - 459 million years - 10,0% of Earth's history.

Paleozoic Era - 290 million years - 6,3% of Earth's history.

Mesozoic Era - 185 million years - 4,0% of Earth's history.

Cenozoic Era - 66 million years - 1,4% of Earth history.

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