How many emergency exits are required as per number of working people?

Dear all, How many emergency exits are required as per number of working people?

There should be atleast 2 exits on each floor. One is marked as Exit and the other is Marked as Emergency Exit. Both the exit should be near to the assembly point.
At both the exit there should be Fire Fighting equipment available like extinguisher, Alram call point.
The Emergency exit should open outer side it should always be push and not Pull.

thank you. It is necessary to have atleast 2 exits but if i have only 3 people working in 1 department, is it necessary to have 2 exits?
If anyone could tell me for what number of people how many exits are required, it will be really very beneficial!