A sprint started with 354 requirements.

Requirements volatility is calculated as the percentage of change in the total number of requirements during a sprint. The formula to calculate volatility is:

Volatility=(Introduced+Removed+Changed)Initial×100\text{Volatility} = \frac{(\text{Introduced} + \text{Removed} + \text{Changed})}{\text{Initial}} \times 100Volatility=Initial(Introduced+Removed+Changed)​×100

Using the given data:

Initial requirements = 354

Introduced = 14

Removed = 6

Changed = 28

Volatility=(14+6+28)354×100≈13.5%\text{Volatility} = \frac{(14 + 6 + 28)}{354} \times 100 \approx 13.5\%Volatility=354(14+6+28)​×100≈13.5%