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 288 and 8 is 280 (|288-8| = 280).

Next, we need to find the average of the two numbers. The average of 288 and 8 is (288+8)/2 = 148.

Now, we can find the percentage difference by dividing the absolute difference by the average and multiplying by 100. So, the percentage difference between 288 and 8 is (280/148) x 100 = 189.19%.

This means that the second number (8) is 189.19% less than the first number (288). Alternatively, we can say that the first number (288) is 189.19% more than the second number (8).