What is a variable cost? Variable cost is a business expense which is subject to change when sales volumes change. This could mean that variable costs either increase or decrease depending on a ...

Imagine you're a researcher studying how sleep affects mood. To explore the connection, you would look at two key "variables": sleep (how much someone gets) and mood (how happy or irritable they feel) ...

Variable costs are business expenses that change when production volumes change. They differ from fixed costs, which remain constant if production volume rises or falls. The most common forms of ...