So What Club

Finance and accounting

Step cost

A cost that is flat over a range, then jumps.

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What does Step cost mean?

A step cost stays flat until volume passes a limit, then jumps to a new level. One supervisor can manage up to 20 workers; the 21st worker means hiring a second supervisor. Step costs matter in capacity and expansion cases.

Where does it come up in case interview prep?

  • Fixed costA cost that stays the same when volume changes, within a normal range.
  • Semi-variable costA cost with a fixed part and a part that moves with volume.
  • Capacity utilizationActual output as a share of the most that could be produced.
  • ProfitThe money left over after costs. Revenue minus cost.
  • RevenueMoney earned from sales, before costs.
  • CostWhat it takes to make and sell the product in a period.
  • Variable costA cost that rises and falls with how much you make.
  • Marginal costThe extra cost of making one more unit.

Learn it in context

See Step cost at work in a lesson from People, rules and responsibility: organisation, regulation and sustainability, with checks as you go.

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