A wall of a building is made from blocks that are each 1 cubic foot. The wall is 6 feet high and 6 feet wide.
A window is made by removing some blocks as shown below.
The window is 2 feet high by 2 feet wide.

The wall is 6 feet high and 6 feet wide. The window is 2 feet high by 2 feet wide is cut from the centre of the wall.

Suppose the wall is expanded to be 12 feet high by 12 feet wide,
and the window is expanded to be 4 feet high by 4 feet wide.
How will this change the volume of the wall?