A company produces 1,000 bicycles in one week. the labor used to make the bicycles was 550 hours. the next week, output was 1,050 bicycles using 590 hours. what was the change in labor productivity?
a. Decreased by 7.3%
b. Decreased by 2.1%
c. Increased by 2.2%
d. Increased by 5.0%