How many sales people do I need? Well, that’s easy, take your total sales for the last five years, no…the last 10 years…well maybe we can use the last 7 years… anyway, take that number, ( NO not what you paid taxes on, the REAL number) get the average of that time period. ( if you can’t do that, then go back to sales). Anyway take the average sales for the time period, figure out your gross sales, take that number multiply it by 20%. Divide that number by half the days in 6 years. Multiply that number by Pi and then carry the X… hell I have no idea how many you NEED. I don’t think they taught me that in school.