Plus & Minus has been making 3-pointers before the 3-point rule was adopted by the NBA.

How did Plus & Minus become the accounting software of the Houston Rockets?

One day in 1983, the phone rang. It was an inquiry from the Houston Rockets, and the caller wanted to know what was the highest amount of money our payroll software could produce for a single paycheck. $9,999,999.99 was the answer. “When can you get us started?” was the next question. “Immediately” was our response.

That was when the Rockets signed Hakeem Olajuwon and Ralph Sampson.

To this day, family members continue to use Plus & Minus.