Use statistics probabilityplease be detailed

This is a Math Question

A new virus test was recently developed by a pharmaceutical company. It returns a positive result for 90% of individuals who have the virus. However, it also returns a positive result for 2% of those who do not have the virus. To evaluate the test, an experiment was conducted in which a large number of people were tested at random. Overall, 5% of people tested positive. What percentage of those testing negative actually had the virus?