George Kyparisis makes bowling balls in his Miami plant. With recent increases in his costs, he has a newfound interest in efficiency. George is interested in determining the productivity of his organization. He would like to know if his organization is maintaining the manufacturing average of a 3% increase in productivity. He has the following data representing a month from last year and an equivalent month this year: Last Year Now Units Produced 1,500 1,500 Labor (hours) 300 260 Resin (pounds) 55 48 Capital Invested ($) 8,500 12,000 Energy (BTU) 2,950 2,850 The productivity change for each of the inputs (Labor, Resin, Capital, and Energy) is: Labor Productivity Change = % (enter your response as a percentage rounded to two decimal places and include a minus sign if necessary).