This is how I understand the major reporting to work. If this isn't correct, someone please correct me! 🙂
First, here's the rule from F-9 page 20:
1. 10% or more of total revenues, expenditures/expenses, assets, or liabilities of all the Gov't funds OR the Enterprise funds
AND
2. 5% or more of total revenues, expenditures/expenses, assets, or liabilities of all the Gov't AND all the Enterprise funds.
So you take the governmental funds (General, Special Revenue, Debt Service, Permanent, Capital Projects) and the Enterprise funds and first individually compare each fund to rule 1. If a fund is greater than or equal to 10% of EITHER the Gov't fund for Enterprise funds it meets the first requirement. Then you look at each fund individually again for rule 2. If the fund is greater than or equal to 5% of the COMBINED totals of Gov't funds and the Enterprise funds it meets the second requirement, making it a major fund.
(Note: as the book says the General Fund is always going to major and you always ignore the Internal Service fund for this)
So for example lets use the Special Revenue Fund:
Say the Special Revenue Fund is only 6% of total rev/expend/exp/assets/liab the gov't funds, BUT is 11% of total rev/expend/exp/assets/liab the enterprise funds it meets the 1st requirement.
AND
Since the Special Revenue Fund is 6% of total rev/expend/exp/assets/liab for gov't funds AND 11% of the total rev/expend/exp/assets/liab enterprise funds it meets the 2nd requirement.