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  1. R

    Changing Percentages When Adding Ingredients To A Base

    Hi, I just want to make sure my maths is correct before labeling my products. If I have, say, 10kg of base for a lotion or cream, and add 2% of a new ingredient, would I do the following calculation? 10,000 / 0.98 = 10,204 And therefore add 204g of the new ingredient to make it 2%? Would I...