Question: how much is 5 of $4?
Answer: Thus, a product that normally costs $4 with a 5 percent discount will cost you $3.80, and you saved $0.20. You can also calculate how much you save by simply moving the period in 5.00 percent two spaces to the left, and then multiply the result by $4 as follows: $4 x . 05 = $0.20 savings.