After a customer has paid his or her first invoice, the average days to pay (ADTP) is calculated based on the number of invoices a customer has, the time taken to pay the first invoice, and the time taken to pay the most recent invoice. The formula for calculating the average days to pay is: ADTP = (Current ADTP) x (Number of Invoices) + (Number of Days Taken to Pay Most Recent Invoice) / (Number of Invoices + 1) The time it took to pay the first invoice would provide the initial value for the Current ADTP.
There are two paths to becoming an astronaut: 1  Become an US military pilot, and the best and safest pilot you can be. 2  Get a PhD in a subject that will be necessary in which to perform research in space, or to assist in building a new space station, or a space colony.
Currently, a GS-12 starts at $65,140 per year and a GS-13 can earn up to $100,701 per year. Becoming an astronaut is extremely competitive, with an average of more than 4000 applicants for about 20 openings every two years.Astronaut recruiting occurs periodically. Becoming an astronaut is very difficult, but it has a good salary, and it is fun to become an astronaut, you'll be known world wide.he average monthly salary of a NASA astronaut is about nine  thousand five hundred and eighty three dollars. That is  approximately one hundred and fifteen thousand dollars â¦ a year. 1 person found this useful.