You must add powdered dye to water to make a water-based stain. For the amount of stain you need to make, 4 ounces of dye is required. The dye is sold in packages weighed in milligrams. You know that one ounce is equal to 28,350 milligrams. How many milligrams of the dye are required to make the stain? This answer will be a whole number.