Productivity -Numerically Defined
Total factor productivity (TFP) = Pt = Ot/(L+C+R+Q)
Partial factor productivity (PFP) = Ot/L or C or Ot/a combination of inputs
Pt = Total factor productivity
Ot = Total output (sales value $)
L = Labour input factor ($)
C = Capital input factor ($)
R = Raw materials/purchased parts ($)
Q = Other miscellaneous services ($)