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NPV is the net present value.
IRR is the -Internal Rate of Return
-AIRR is the Adjusted Internal Rate of Return
the net present value shows the activities of a company and can be used to determine whether to invest in a project or not,it gives credible information on payments.
The biggest limitation to the calculation of NPV is its sensitivity to the discount rates , NPV calculations are a summation of multiple discounted cash flows - both positive and negative - converted into present value terms for a similar point in time (oftenly when the cash flows starts). As such, the discount rate used in the denominators of each present value (PV) calculation is vital in identifying what the final NPV number will turn will result to . A small increase or decrease in the discount rate will have a considerable effect on the final output.
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