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The payback period is the time required for an investment to generate enough cash flow to recover its initial cost. It is the simplest capital budgeting metric — shorter is generally better, though it ignores the time value of money.

단계별 가이드

  1. 1Identify the initial investment amount
  2. 2Estimate the annual (or periodic) cash inflows the investment generates
  3. 3Simple payback = Initial investment / Annual cash inflow
  4. 4For uneven cash flows, cumulate inflows year by year until the investment is recovered

풀어진 예시

입력
Investment £10,000 · Annual inflow £2,500
결과
4.0 years payback
£10,000 ÷ £2,500
입력
Solar panels £8,000 · Annual saving £1,200
결과
6.7 years payback
Typical residential solar payback

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