Laundering is more often 15 percent. It might go up or down based on the local market, but ex-USA has the highest price I've heard of. Once the money was in France, I'd predict more like 5-10 percent, since the hardest step (initial; moving bulk cash out in the USA thanks to effective AML controls these days) is a lot easier in Europe (fly, boat to North Africa, or drive over relative open or at least "friendly" land borders in the East and Southeast.)

Usually for businesses you use nail salons, tanning, etc which have high labor and service components to price, vs. materials.