A space shuttle was launched from the Earth to the moon. The average, or accepted, value of the distance of the Earth to the moon is 238,857 miles, but the shuttle crew recorded that their trip took 226,316 miles.

Find the difference between the accepted distance and the recorded distance: 238,857 − 226,316 = 12,541 miles. Divide this difference by the accepted distance and multiply by 100: (12,541 ÷ 238,857) × 100 ≈ 5.25%, so the correct choice is 5.25%.

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