In the diagram, each small square in the grid is the same size. What percent of the grid is shaded?
(A) 84
(B) 80
(C) 90
(D) 75
(E) 66

![](https://cdn.mathpix.com/cropped/2024_04_20_46ead6524a8d61e21c51g-065.jpg?height=293&width=288&top_left_y=1718&top_left_x=1298)
In the diagram, the length of one side of the large square is equal to eight side lengths of the smaller squares, so the large square consists of $8 \times 8=64$ small squares.

Of these 64 small squares, 48 are shaded. (We can obtain this number by counting the 48 shaded squares or by counting the 16 unshaded squares.)

As a percentage, this fraction equals $\frac{48}{64} \times 100 \%=\frac{3}{4} \times 100 \%=75 \%$.

ANSWER: (D)