Another way to think about it: for every 100 units in 10, you take 56. That adds up to 5.6.
On a 56% off sale, an item originally priced at $10 would be discounted by $5.6, bringing the price to $4.4.
Whether you are calculating a discount, a tax, a tip, or a commission, the math is always the same: multiply 10 by 0.56.