To solve this expression, we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, let's simplify the expression inside the parentheses:
477 + (-48) = 429
(-52) + 477 = 425

Now, let's substitute these values back into the expression:
429 - 425 = 4

Next, let's calculate the exponent:
(-5)² = 25

Finally, let's multiply the result by 2:
25 * 2 = 50

Therefore, the final answer is 50.