A material is tested in tension and found to have the following stress-strain graph. The elastic modulus of the material is 7.8 GPa.

The coordinates of point B on the graph are (0.25, 56). These will help you determine the scale of the graph.

Accurately calculate the ductility of the material. Give your answer as a % to 2 decimal places.

Write your workings on a sheet of paper and upload an image of these at the end of the test. Write your final answer in the text box.