4. The CEO has asked you to evaluate the firm's productivity by comparing performance a month from last year and equivalent month this year. The following data are available: The CEO determines his costs to be as follows: - Labor $20 per hour - Utilities $1.50 per BTU - Capital 5% per month of investment. Show the productivity change, for one month last year versus one month this year, on a multifactor basis. 4. The CEO has asked you to evaluate the firm's productivity by comparing performance a month from last year and equivalent month this year. The following data are available: The CEO determines his costs to be as follows: - Labor $20 per hour - Utilities $1.50 per BTU - Capital 5% per month of investment. Show the productivity change, for one month last year versus one month this year, on a multifactor basis