Lillian Fok is president of Lakefront Manufacturing, a producer of bicycle tires. Fok makes 1,200 tires per day with the following resources.

Labor: 400 hours per day @ $12.50 per hour

Raw material: 21,000 pounds per day @ $1.50 per pound

Energy: $5,000 per day

Capital costs: $10,250 per day

a) Labor productivity per labor hour for these tires? = ?tires/labor hour ?(round your response to two decimal? places).

?b) Multifactor productivity for these tires? = ?tires/dollar ?(round your response to four decimal? places).

?c) The percent change in multifactor productivity if Fok can reduce the energy bill by ?$1,000 per day without cutting production or changing any other inputs? = ?(enter your response as a percentage rounded to two decimal? places).

?Note: calculate the new multifactor productivity to four decimal places before calculating the percentage change.