Economia afacerilor Economie financiară Contabilitate Marketing Logistică Microeconomie Macroeconomie Matematică financiară
Atunci costurile totale sunt (Ctot): Ctot = CCu + CCo + CD = [ x ⋅ ⋅ --> e ] + [ N ⋅ ⋅ --> B ] + [ Q 2 ⋅ ⋅ --> e ⋅ ⋅ --> i ] {\displaystyle [x\cdot e]+\mathbf {[N\cdot B]} +[\mathbf {{\frac {Q}{2}}\cdot e\cdot i} ]} cu aldine sunt costurile relevante (care au influență)
Optimizarea cantității comandate Q: Condiția de optimizare: f ′ ( x ) = 0 {\displaystyle f'\!(x)=0} , K ′ ( Q ) = 0 {\displaystyle K'\!(Q)=0} ⇔ ⇔ --> Q 2 = ( 2 ⋅ ⋅ --> B ⋅ ⋅ --> x ) ( e ⋅ ⋅ --> i ) {\displaystyle \Leftrightarrow Q^{2}={\frac {(2\cdot B\cdot x)}{(e\cdot i)}}} ⇔ ⇔ --> Q ⋆ ⋆ --> = ( 2 ⋅ ⋅ --> B ⋅ ⋅ --> x ) ( e ⋅ ⋅ --> i ) {\displaystyle \Leftrightarrow Q^{\star }={\sqrt {\frac {(2\cdot B\cdot x)}{(e\cdot i)}}}}