2 / 250 as a percent answers

First, you need to turn it into a decimal, which would be 0.008.
Now we can turn it into a percentage easier. When you turn a decimal into a percentage, you need to multiply it by 100. It's 100 because the root word cent means 100. 
Now, 0.008*100 is 0.8. So your answer would be 0.8% :)