The formula to calculate the Theoretical Weight (TW) is:
\[ \text{TW} = \frac{\text{W} \times \text{Y}}{100} \]
Where:
Let's say the total weight (W) is 500 grams and the theoretical yield (Y) is 80%. Using the formula:
\[ \text{TW} = \frac{500 \times 80}{100} = 400 \text{ g} \]
So, the theoretical weight is 400 grams.