Answer:
86.3%
Explanation:
Let's think of this in verbal terms. To rephrase, the question is asking what percentage of 512 is 442?
To make this more understandable, think of this example: what percentage of 100 is 50? The answer is 50%, because 50/100 = 50%.
For this one, just divide 442/512 = .863 = 86.3%.