Domain: technology (Engineering Design and Analysis)
Problem: Please calculate the theoretical weight of the original rectangular prism blank corresponding to this part based on the maximum outer contour dimensions (length, width) in the drawing and the thickness marked in the cross-sectional view (Section E-E). Then, calculate the material removal rate from the blank to the finished product (i.e., the percentage of material that has been cut off), and output the percentage, accurate to two decimal places.
Answer: 1.86 %