text: For your question re the wax FO, it would be 5 grams oil and 45g wax.
  Your net weight is 50g per bar. On a calculator you divide 50 by 110% if using 10% FO. Then simply subtract your answer from 50. So 50 divided by 110% is 45, and 45 minus 50 leaves you with 5g of FO. 😊