ENTERPRISE THEORY - THE ECONOMIC RESULT AND THE BREAK EVENT POINT . Tomáš Pražák Lecturer E = f ( Q ) = v x Q +F NE= V + F where F … total fixed costs [CZK] v … unit variable costs [CZK/piece, CZK/kg, CZK/l, …] V … total variable costs Q … volume of production [pcs, kg, l, …] COSTS S = (p x Q) where p ... selling price per piece [CZK/piece] Q … volume of production [pcs, kg, l, …] SALES •the found relationship can be used to calculate the so-called "limit" quantities: olimit value of fixed costs olimit value of unit variable costs olimit price