By end of the 1980s, the company was manufacturing residential, commercial and industrial generators, and in 1989, Generac introduced the first gaseous-fueled automatic home standby system. In 1992, Generac began private labeling generator sets for Caterpillar, Inc.
Elements of the Productivity Ratio. The labor productivity ratio, in its simplest form, looks like this: output/input. Simply divide the amount of output you're getting by the amount of work you're putting into it. This requires you to assign numbers to both input and output so that you get a meaningful figure.
To calculate the total labor cost per hour worked, add up all of the non-wage expenses. Suppose you pay $4,800 for payroll taxes and workers compensation insurance, plus another $4,000 for health insurance and contributions to a retirement plan.ivide the annual wages by the actual labor hours to find the wages per labor hour. In this example, $31,200 divided by 1,920 hours works out to $16.25 per hour.