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 264 and 24 is 240 (264 - 24 = 240).

Next, we need to find the average of the two numbers. The average of 264 and 24 is (264 + 24) / 2 = 144.

Now, we can calculate the percentage difference by dividing the absolute difference by the average and multiplying by 100. So, the percentage difference between 264 and 24 is (240 / 144) x 100 = 166.67%.

This means that the second number (24) is 166.67% less than the first number (264). Alternatively, we can say that the first number is 166.67% more than the second number.