Martin Manufacturing has implemented several programs to improve its productivity. They have asked you to evaluate the firm's productivity by comparing this year's performance with last year's. The following data are available.

	Last Year	This Year
Output	10,500 units	12,100 units
Labor	$12,000	$13,200
Utilities	$7,600	$8,250
Capital	$83,000	$88,000

a. What is the percent change in labor productivity this year vs. last year? [ Select ] ["5.34%", "7.69%", "4.76%", "3.25%"]

b. What is the percent change in utilities productivity this year vs. last year? [ Select ] ["-1.25%", "4.55%", "6.52%", "6.16%"]

c. What is the percent change in capital investment's productivity this year vs. last? [ Select ] ["-6.75%", "5.55%", "8.69%", "9.24%"]

d. What is the overall multi-factor productivity for last year? [ Select ] [".1105", ".2457", ".0126", ".1023"]

e. What is the overall multi-factor productivity this year? [ Select ] [".1106", ".3478", ".0468", ".1023"]

f. What is the multi-factor percent change this year vs. last year? [ Select ] ["3.5%", "8.0%", "-2.7%", "11.8%"]