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CBAP · Question #31

You are the business analyst for the TGH Organization and are determining if you should buy or build a solution for your company. You have determined that you can create the in-house solution for…

The correct answer is D. 22 months. Break-even analysis for a build-vs-buy decision divides the upfront cost difference by the monthly cost difference to find the month at which cumulative costs equalize.

Strategy Analysis

Question

You are the business analyst for the TGH Organization and are determining if you should buy or build a solution for your company. You have determined that you can create the in-house solution for $78,000 with a monthly support cost of $8,765. A vendor can create the solution for $61,000 with a monthly support costs of $7,990. How long will it take your company to break even if you choose the internal solution versus the vendor's solution?

Options

  • A36 months
  • B12 months
  • C6 months
  • D22 months

How the community answered

(48 responses)
  • A
    6% (3)
  • B
    10% (5)
  • C
    2% (1)
  • D
    81% (39)

Why each option

Break-even analysis for a build-vs-buy decision divides the upfront cost difference by the monthly cost difference to find the month at which cumulative costs equalize.

A36 months

36 months is not produced by correctly applying the break-even formula to the given figures; the $17,000 cost difference divided by the $775 monthly difference yields approximately 22, not 36.

B12 months

12 months is too short - at 12 months, the cumulative cost offset from the monthly difference ($9,300) does not yet cover the $17,000 upfront cost gap.

C6 months

6 months is far too short - the monthly cost differential of $775 would recover only $4,650 of the $17,000 upfront difference in that period, well short of break-even.

D22 monthsCorrect

The break-even point is calculated by dividing the difference in initial costs by the difference in monthly recurring costs: ($78,000 - $61,000) / ($8,765 - $7,990) = $17,000 / $775 = approximately 21.94 months, which rounds to 22 months. At this point, the total cumulative expenditure for both options is equal, and any further time beyond this month determines which option is more cost-effective long-term.

Concept tested: Break-even analysis for build vs buy decisions

Source: https://www.iiba.org/standards-and-resources/babok/

Topics

#break-even analysis#build vs buy#cost-benefit analysis#financial modeling

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