How many times will the area of the square decrease if each side of it is reduced by 2 times?

For example, the sides of the square were 4 cm each. Area = 4 * 4 = 16 cm2.
Reduced the side by 2 times, the side became 4: 2 = 2 cm.Area = 2 * 2 = 4 cm2
Or like this: side = X, area = X squared.
The side became X / 2. Area = X / 2 * X / 2 = X / 4 squared.
The area was X squared, became X / 4 squared.
Result: decreased by 4 times.