Ternes Manufacturing produces metal products primarily used in the construction industry. The three main inputs in production are materials (metal), labor, and overhead. Data for the previous three reporting periods follow:

	Period 3	Period 2	Period 1
Materials cost	$ 54,000	$ 68,500	$ 63,750
Labor cost	33,150	42,820	39,200
Overhead	46,050	51,600	49,850
Value of product produced	140,930	182,504	167,604

Required:

a. Compute the total factor productivity for the previous three reporting periods.

Note: Round your answers to 2 decimal places.