Determining Cost Types and Building Flexible Budgets
Based on the information provided, we can classify the costs into variable, fixed, and semi-variable categories:
Variable:
Direct material: Varies directly with production volume.
Direct wages: Varies directly with production volume.
Direct expenses: Varies directly with production volume.
Office overhead (60%): 60% of office overhead is variable with production volume.
Selling overhead (30%): 30% of selling overhead is variable with production volume.
Fixed:
Factory overhead (60%): 60% of factory overhead is fixed.
Office overhead (40%): 40% of office overhead is fixed.
Selling overhead (70%): 70% of selling overhead is fixed.
Rent and rates: Presumably fixed costs not directly related to production volume.
Semi-variable:
Indirect materials: May vary somewhat with production volume but not directly proportional.
Indirect labor cost: May vary somewhat with production volume but not directly proportional.
Supervision: May vary somewhat with production volume but not directly proportional.
Maintenance cost: Likely has both fixed and variable components.
Separating Semi-Variable Costs:
To use the formula BA = FC + bx LA, we need to separate the semi-variable costs into fixed and variable components. You can do this using one of the following methods:
High-Low Method: Analyze data at two different activity levels (high and low) to estimate the fixed and variable portions of the cost.
Engineering Approach: Analyze the cost components and identify the specific fixed and variable elements.
Regression Analysis: Use statistical regression to estimate the relationship between the cost and activity level.
Building Flexible Budgets:
Once you have classified and separated the semi-variable costs, you can use the following methods to build flexible budgets:
Formula Method: Use the formula BA = FC + bx LA, where:
BA is the budgeted cost at activity level LA.
FC is the fixed cost component.
b is the variable cost per unit of activity.
LA is the activity level.
Table Method: Create a table with columns for activity level, variable cost, fixed cost, and total cost for different production volumes.
Example:
Let's assume the following:
Activity levels: 30,000, 36,000, and 40,500 units.
Variable cost per unit for indirect materials: Rs. 2.
Fixed cost component for indirect materials: Rs. 5,000.
Using the table method, you would calculate the variable cost for each activity level (30,000 * 2 = Rs. 60,000, etc.) and add it to the fixed cost to get the total budgeted cost for each level.