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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 2,500 uniforms per week at a standard cost of $140 each. 68 employees work the first shift and 30 the second. The contract price is $240 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 4,200 uniforms per week but at a cost of $152 each. a. The multifactor productivity level decreased for two shifts working 72 hours when compared to the level of the normal two shifts. The multifactor productivity ratio based on the normal two shifts changed by 7.60% as compared to two shifts working 72 hours per week. (Enter your response rounded to two decimal places.) b. The labor productivity level decreased for two shifts working 72 hours when compared to the level of the normal two shifts. The labor productivity ratio based on the normal two shifts changed by % as compared to two shifts working 72 hours per week. (Enter your response rounded to two decimal places.)