The formula to calculate the penetration percentage (P) is:
\[ P = \left(\frac{C}{T}\right) \times 100 \]
Where:
Let's say the number of customers acquired (C) is 500 and the total potential customers (T) is 2000. Using the formula:
\[ P = \left(\frac{500}{2000}\right) \times 100 \]
We get:
\[ P = 25 \% \]
So, the penetration percentage is 25%.