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 225 and 365 is 140 (365 - 225 = 140).

Next, we need to find the average of the two numbers. The average of 225 and 365 is (225 + 365) / 2 = 295.

Now, we can calculate the percentage difference by dividing the absolute difference by the average and multiplying by 100. So, the percentage difference between 225 and 365 is (140 / 295) x 100 = 47.46%.

This means that the second number (365) is 47.46% higher than the first number (225). Alternatively, we could say that the first number is 31.58% lower than the second number (since 47.46% + 31.58% = 79.04%, which is the total percentage change between the two numbers).