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. Round calculations to 2 significant digits.

2018 2019

Number of phones manufactured 600,000 780000

units of DTV-12 USED 960000 1072500

DIRECT LABOR HOURS FOR DTV-12 INSERTION 1800, 2600

TOTAL COST OF DTV-12 UNITS $1443750 $2,333,750

DIRECT LABOR WAGE RATE PER HOUR $67

The partial operational productivity ratio of DTV-12 in 2019 is:

NEED HELP WITH FORMULA AND CALCULATION