Revenues are fees paid on funds (usually 2%, may go down after investment period).
Expenses are team comp, office, all ops, compliance and placement agent fees if those are used.
Each fund pay fees and carry ... as well as some expenses (legal feels, deal expenses, fund admin, audit fees)
Subject to 10 year vesting.
Top funds charge 3/30
Usually 2% at a minimum.
Often GP's will use the management fee to fund this.
New structures such as @AngelList rolling funds reduce that hurdle for emerging investors 👍