How do you calculate the achievement when a loss is budgeted and actual loss is more than that?

To calculate the achievement when the actual loss exceeds the budgeted loss, you first determine the difference between the budgeted loss and the actual loss. If the actual loss is greater, it indicates a negative variance. The achievement can be expressed as a percentage of the budgeted loss, using the formula: Achievement = (Budgeted Loss - Actual Loss) / Budgeted Loss * 100. In this case, the achievement percentage would reflect a shortfall rather than a success.