If you tried to copy and paste a picture, that does not work here.
it looks like this
AADDD
AADDD
AADDD
AADDD
THE As are the shaded in part the Ds are the rest its is a 5 by 4 grid
To provide a ratio and a percent for the shaded area, I would need more information about the specific scenario you are referring to. Please provide details about the shape, its dimensions, and the area that is shaded. Once you have provided these details, I can guide you on how to calculate the ratio and percent for the shaded area.
