The following formula is used to calculate the Parts To Percentage:
\[ PTP = \frac{P}{W} \times 100 \]
Parts To Percentage (PTP) is calculated by dividing the number of parts by the total amount, then multiplying by 100 to get the percentage.
Let's say we have a total of 50 parts out of a whole amount of 200. To find the percentage, we can use the formula:
\[ PTP = \frac{50}{200} \times 100 = 25\% \]
Therefore, 50 parts out of 200 is 25%.