To find the percentage difference between two numbers, we first need to find the absolute difference between them. In this case, the absolute difference between 52 and 79 is 27.

Next, we need to find the average of the two numbers. The average of 52 and 79 is (52+79)/2 = 65.5.

Now, we can find the percentage difference by dividing the absolute difference by the average and multiplying by 100. So, the percentage difference between 52 and 79 is (27/65.5) x 100 = 41.22%.

This means that the second number (79) is 41.22% higher than the first number (52). Alternatively, we can say that the first number (52) is 31.25% lower than the second number (79).