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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.
ステップバイステップガイド
- 1Identify the initial investment amount
- 2Estimate the annual (or periodic) cash inflows the investment generates
- 3Simple payback = Initial investment / Annual cash inflow
- 4For uneven cash flows, cumulate inflows year by year until the investment is recovered
解いた例
入力
Investment £10,000 · Annual inflow £2,500
結果
4.0 years payback
£10,000 ÷ £2,500
入力
Solar panels £8,000 · Annual saving £1,200
結果
6.7 years payback
Typical residential solar payback
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