Another way to think about it: for every 100 units in 10, you take 62. That adds up to 6.2.
On a 62% off sale, an item originally priced at $10 would be discounted by $6.2, bringing the price to $3.8.
Whether you are calculating a discount, a tax, a tip, or a commission, the math is always the same: multiply 10 by 0.62.