Calculate the below ingredient amounts to make a yield of sixty portions. The existing (old) yield is eight portions. Ingredients 200 grams (g) of butter 450 grams (g) of oats 200 millilitres (ml) of milk 1 lemon rind. Use these formulas to show your calculations and round up to the nearest whole number (if needed). Recipe conversion factor formula: New yield old yield = recipe conversion factor (RCF) Adjusting yield formula: Ingredients amounts x recipe conversion factor = new recipe