Answer:
Outside the relevant range, variable costs, such as direct material costs will not change proportionately with changes in production volumes
Step-by-step explanation:
Variable costs vary linearly with the production level. Variable costs endure consistent beyond all production levels within the relevant range. Direct materials are recognized as a variable cost. Direct labor may not be a variable cost if the activity is not appended to or deducted from the production manner as production volumes vary.
Most types of overhead are not supposed to a variable cost. Variable costs would diminish with any lessening in production due to lower demand. If production or services are growing, then variable costs should also rise.