Show volume and workings for shape in SketchUp

I have a shape in Sketchup with volume of circa 49m3. I need to show workings for how the shape is 49m3 volume. This will be done by breaking it down into regular shapes (prisms, etc,) and showing the workings for the several regular shapes that make up the entire shape.

Here is the skp file: https://drive.google.com/drive/folders/1WtY-mvfCDleXSXbR2bDEwSmhavSB84Xx?usp=sharing

See attachment for an example breakdown from a similar project. I need similar to this.

I need this delivered within next 18 hours.

Let me know if able to assist