If you have 4 items and a 3‑month success rate of 100%, how would you calculate the percentage of exceptions that are below 0.75?

First, identify the number of exceptions that fall below the threshold of 0.75. Suppose out of the 4 items, 2 have exception values less than 0.75. The percentage of such exceptions is calculated by dividing that count by the total number of items and multiplying by 100: (2 ÷ 4) × 100 = 0.5 × 100 = 50%. This tells you that 50% of the items had exceptions below the threshold. If the 3‑month success rate is 100%, it indicates that all items met the success criteria over the period, but you can still analyze exceptions within that success window. The general formula is (exceptions_below_threshold ÷ total_items) × 100.