"relevant range" means the range of activity over which Relevant Costs are incurred Costs may fluctuate Production may vary The assumptions about Fixed and Variable Cost Behavior are reasonably van Which of the following statements regarding Fixed Costs is incorrect? Expressing Fixed Costs on a per unit basis usually is the best approach for decision man Fixed costs expressed on a per unit basis will decrease with increases in volume activy Total Fixed Costs are constant within the relevant range Fixed costs expressed on a per unit basis will increase with decreases in volume acom