Hector took a 1 week vacation, so his next paycheck will only be 3 weeks of work. what percentage of his regular pay should he expect to receive?

The problem says that Hector receives his regular pay when he works 4 weeks, but he took a 1 week vacation. So, if in 4 weeks Hector receives the 100% of his regular pay, what percentage of that pay should he expect to receive with 3 weeks of work?

 4 weeks100%
 3 weeksx

 We have:

 x=(3x100)/4
 x=75%

 Then, the answer is:

 Hector should expect to receive the 75% of his regular pay.

I'm sure the answer is a