: , , , , .
1. () = Net Present Value (NPV)
, , , .
, .. .
(NPV) = ,
;
( , );
.
, :
>0, ,
<0, ,
= 0, , .
: ; ; , , .
: ;
.
, , , . , , .
2. = Payback index (PI)
, NPV, , , . : NPV . . PI .
(PI) = /
, ,
< 1 =1, , .
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3. = Profitable index (PI)
, ( ).
(PI) = \,
;
;
.
. . , , , , . , , , .
= / ,
,
,
.
= / (+ ),
,
.
4. () = Payback period (PP)
, , . PP .
(PP) = /,
, .
1.
( ).
2. , .. . , .
,
. , . , , . , , ( ). , , . ( , ).
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5. () = Internal Rate of Return (IRR)
. , , .
IRR , , .. NPV . IRR :
(IRR) = n√ / 1,
( );
;
.