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 230 and 180 is 50 (230 - 180 = 50).

Next, we need to find the average of the two numbers. The average of 230 and 180 is (230 + 180) / 2 = 205.

Now, we can calculate the percentage difference by dividing the absolute difference by the average and multiplying by 100. So, the percentage difference between 230 and 180 is (50 / 205) x 100 = 24.39%.

This means that the second number (180) is 24.39% less than the first number (230). Alternatively, we can also say that the first number (230) is 24.39% more than the second number (180).