Gutsen Communications Inc. manufactures a scrambling device for cellular phones. The main component of the scrambling device is a very delicate partDTV-12. DTV-12 requires careful handlings during manufacturing. Once damaged, the part must be discarded. Only skilled laborers are hired to manufacture and install DTV-12. Damages still occur, however. The following are the operating data of Gutsen Communications Inc. for 2018 and 2019 relative to the insertion of DTV-12.

		2018		2019
Number of phones manufactured		612,000		740,000
Units of DTV-12 used		960,600		1,000,000
Direct labor hours for DTV-12 insertion		1,900		2,710
Total cost of DTV-12 units	$	1,444,250	$	2,334,250
Direct labor wage rate per hour	$	70.00	$	86

The partial operational productivity ratio of DTV-12 in 2019 is: (Round calculations to 2 significant digits.)

Multiple Choice

• 0.64 per unit.

• 0.74 per unit.

• 1.93 per unit.

• 3.01 per unit.

• 3.34 per unit.