Operator efficiency calculation

I.E department law

Tex-know

  An operator was doing an operation of SMV 0.05 min, in a shift 8 hour per day he production 460 pic  so according to the efficiency calculating formula ,that operators over all  efficiency?

Operator efficiency =

 

                                    = ( 460×0.05×100% ) ÷(8 hr ×60 min )

                                       = 47 % ans