Final answer:
The question lacks specific data to calculate the variance for Adom Company's overhead costs accurately however, understanding that total costs comprise fixed and variable costs is essential in variance calculations.
Step-by-step explanation:
The question asks how to calculate the total variable overhead cost and total fixed overhead cost variance for Adom Company, which uses a standard cost system in its production process. Calculating these requires understanding that total costs are the sum of fixed and variable costs. Fixed costs, such as the rent of the space, do not change with production levels, making it possible to calculate the average fixed cost by dividing the total fixed cost by the quantity of output, thus 'spreading the overhead'. Variable costs, on the other hand, change based on production levels, as they are expenses like labor which increase with more production.
Adding the fixed costs to the variable costs for each given level of output provides the total costs. However, the provided information does not include specific numbers needed for calculating these variances, as it does not detail the actual standard and actual costs incurred by Adom Company.