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 190 and 130 is 60 (190 - 130 = 60).

Next, we need to find the average of the two numbers. The average of 190 and 130 is (190 + 130) / 2 = 160.

Now, we can find the percentage difference by dividing the absolute difference by the average and multiplying by 100. So, the percentage difference between 190 and 130 is (60 / 160) x 100 = 37.5%.

Therefore, the percentage difference between 190 and 130 is 37.5%. This means that the difference between the two numbers is 37.5% of their average value.