The formula to calculate the Cost Plus Margin (CPM) is:
\[ CPM = \frac{IP}{C} \times 100 \]
Where:
Let's say the item profit (IP) is $50 and the item cost (C) is $200. Using the formula:
\[ CPM = \frac{50}{200} \times 100 \]
We get:
\[ CPM = 25\% \]
So, the cost plus margin is 25%.