Formula for Cost

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$Total Revenue(TR)=P×Q
$Marginal Revenue (MR)=dTR/dQ 
$Total Cost(TC)=TFC+TVC or FC+VC
$Marginal Cost(MR)=dTC/dQ
$Average Variable Cost(AVC)=VC/Q
$Average Fixed cost (AFC)=FC/Q
$Average Total Cost(ATC)=TC/Q or AFC+AVC
$Average Revenue (AR=P)=TR/Q
Or AR==(P×Q)/Q=P



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