The formula to calculate the sausage ratio (SAR) is:
\[ SAR = \frac{F}{W} \cdot 100 \]
Where:
Let's say the total weight of the sausage (W) is 200 grams and the total weight of fat in the sausage (F) is 50 grams. Using the formula:
\[ SAR = \frac{50}{200} \cdot 100 \]
We get:
\[ SAR = 25 \% \]
So, the sausage ratio is 25%.