200-(4506+247)-20%

Let's break down the expression step by step:

1. First, calculate \(4506 + 247\): \[ 4506 + 247 = 4753 \]

2. Next, substitute this back into the expression: \[ 200 - 4753 - 20\% \]

3. Calculate \(200 - 4753\): \[ 200 - 4753 = -4553 \]

4. Now, find \(20\%\) of \(-4553\): \[ 20\% = \frac{20}{100} = 0.20 \] \[ 20\% \text{ of } -4553 = 0.20 \times -4553 = -910.6 \]

5. Finally, add \(-910.6\) to \(-4553\): \[ -4553 - 910.6 = -5463.6 \]

Thus, the final result is: \[ \boxed{-5463.6} \]