Abstract: A system and method for determining and visually displaying efficiency rates for a production or assembly line has three main parts. A computer accepts predetermined data that sets a baseline rate and a target rate of production of units and data from a counter that counts the actual number of units being produced. The counter is most commonly an electric eye attached at a strategic point in the production or assembly line by a magnetic base. A three light visual display has Green, Yellow and Red lights to visually display whether the actual rate of production of units is above the target rate, below the target rate but above the baseline rate or below the baseline rate. The computer screen allows for data input (baseline and target rates, time period measured), worker breaks and product “Changeovers” and may also show graphics depicting the amount of time in which the production or assembly line is at or below the baseline and target rates or in between those rates.