Last winter an outbreak of flu occurred in Mathsland.

It is known that `1%` of the population have the flu.

As a result, a new flu test was rolled out to a random sample of the population, in which `100","000` people were tested.

The flu test was said to be `99%` accurate by its manufacturers.

A person who tested positive for flu is chosen at random.

What is the probability that this person actually has the flu?

Give your answer to the nearest whole number.