:
, MRPL = PL
MRPK = PK
.. MRPL / PL = MRPK / PK = 1
(FC) - , .
(VC) - , .
() - , , :
= FC + VC.
(AFC) - . (FC) () :
AFC = FC/Q.
(AVC) - :
AVC = VC / Q.
() () - . :
) :
ATC = TC/Q;
) :
= AFC + AVC.
() - , : MC = ∆VC / ∆Q
.
.
. ,