$200 * .25 becomes $150.
To get back to $200, we need to add $50 to $150. So now we need to find out what percentage of $150 is $50.
150 * .3̅ (or 1/3) = $50
Presto! So now, what percentage of $150 is equal to $200?
($150 * 100%) + ($150 * .3̅) = $200 and 133.3̅%
$150 $50
Which brings us to an answer of 133.3̅% or 133 and 1/3%