What is a healthy starting 3-year projection for a newly formed non-profit?

What is a healthy starting 3-year projection for a newly formed non-profit? Please use
the attached mock Excel spreadsheet as a starting point to determine what the budget
should look like. This spreadsheet contains only initial start-up costs. The prices in the
spreadsheet are based on guestimates of what it would take to handle any particular
area.
a. Should there be a percentage increase each following year? If yes, what is that
increase based off of?
b. Are there any costs or expenses that were not being considered in the
spreadsheet? If so, incorporate them into the budget.

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