"huge commission" is a correct and usable phrase in written English.
You can use it when referring to a very large percentage of profits or fees gathered from a transaction. For example: "He negotiated a huge commission of 25% of the total profits."
At the top is Rembrandt's grandest painting, The Night Watch, a huge commission from a city militia.
A huge commission, such as the immense "Madonna of the Rose Garlands" of 1506 that now hangs, much restored, in Prague, could tie him up for months.
A bitter lawsuit in which the gallery owner Larry Gagosian was accused of selling a prominent collector's Roy Lichtenstein painting without her permission and making a huge commission on the deal has been settled.
He was preparing for a huge commission: Archer Milton Huntington, a railroad heir in New York, had requested murals for an octagonal gallery at his new museum, the Hispanic Society of America on Broadway at 155th Street in Washington Heights.
Travel journalism is hard work and the pay isn't always great either: Forget fantasies of being sent round the world on an assignment with a huge commission, all expenses paid, and having endless days lolling on the beach or people-watching in cafes.
There are huge commissioning barriers.
The brokers and dealmakers were scoring huge commissions.
That may be especially true for heavily traded stocks like Apple, which generate huge commissions for Wall Street.
But he added that the balance of power was tipping toward hedge funds, which traded heavily and, in the process, generated huge commissions for Goldman.
General Abacha forced Nigeria to import gasoline through his own agents, pocketing huge commissions and charging inflated prices at the pump.
