The Big Black Bird Company? (BBBC) has a large order for special? plastic-lined military uniforms to

The Big Black Bird Company​ (BBBC) has a large order for special​ plastic-lined military uniforms to be used in an urgent military operation. Working the normal two shifts of 40 hours each per​ week, the BBBC production process usually produces 2 comma 500 uniforms per week at a standard cost of ​$140 each. 68 employees work the first shift and 30 the second. The contract price is ​$220 per uniform. Because of the urgent​ need, BBBC is authorized to use​ around-the-clock production six days per week. When each of the two shifts works 72 hours per​ week, production increases to 4 comma 000 uniforms per week but at a cost of ​$160 each.

a. The multifactor productivity level ▼ (increased decreased did not change) for two shifts working 72 hours when compared to the level of the normal two shifts.