The formula to calculate the Calcium/Phosphorus Ratio (R) is:
\[ R = \frac{Ca}{P} \]
Where:
Let's say the amount of calcium (Ca) is 1000 mg and the amount of phosphorus (P) is 500 mg. Using the formula:
\[ R = \frac{1000}{500} = 2 \]
So, the Calcium/Phosphorus Ratio (R) is 2.