To find the percentage difference between two numbers, we first need to calculate the absolute difference between them. In this case, the absolute difference between 432 and 144 is 288.

Next, we need to find the average of the two numbers. The average of 432 and 144 is (432+144)/2 = 288.

Now, we can calculate the percentage difference by dividing the absolute difference by the average and multiplying by 100. So, the percentage difference between 432 and 144 is (288/288) x 100 = 100%.

This means that the second number (144) is 100% less than the first number (432). Alternatively, we can say that the first number is 100% more than the second number.