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 200 and 134 is 66.

Next, we need to find what percentage of the original number the absolute difference represents. To do this, we divide the absolute difference by the original number (in this case, 200) and then multiply by 100 to get the percentage.

So, the percentage difference between 200 and 134 is:

Absolute difference = 200 - 134 = 66
Percentage difference = (66/200) x 100 = 33%

Therefore, the percentage difference between 200 and 134 is 33%. This means that 134 is 33% less than 200.