Answer: a. 14.9% increase
Explanation:
Percent Increase = ((New Value - Old Value) / Old Value) * 100
Substitute the given values:
Percent Increase = ((54 - 47) / 47) * 100
Percent Increase = (7 / 47) * 100
Percent Increase ≈ 14.9%
So, the correct answer is:
a. 14.9% increase