help me check this 3 part question

George 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 3% increase in productivity per year. Units produced Labor (hours) Resin (pounds) Capital invested ($) Energy (BTU) Last Year 1000 300 50 10000 3000 Now 1000 If George's costs are as follows: Labor: $10 per hour Resin: $5 per pound 275 45 11000 2850 A. Show this year's the productivity for labor hours. (10pts) B. Determine the productivity percentage change (improvement) for labor-hours. (5 pts) Capital expense: 1% per month of investment Energy: $.50 per BTU Show the percent change in productivity for one month last year versus one month this year, on a multifactor basis with dollars as the common denominator. (10 pts)