How do you calculate # species Canada and % Total for the IUCN table?

Under the red-list category the following are chosen Critically Endangered (CR), Endangered (EN), and Vulnerable (VU)

Provide equations used in solving this problem.

Use the attached file to answer the question.

How do you calculate species Canada and Total for the IUCN table Under the redlist category the following are chosen Critically Endangered CR Endangered EN and class=