Answer:
90%
Explanation:
Let's set the missing blank value to x. (x% of 600 = 540)
In order to find a percentage of anything, we simply just divide by 100, and then multiply that value to the value we want to find the percentage of. Thus our new equation can be rearranged to this:
0.01x (600) = 540
Now simplify:
6x = 540.
x = 90.
That means 90% of 600 is 540.