A cleaning company uses $20 of chemicals, $50 of labor, and $10 of misc. expenses for each house it cleans. After some quality complaints, the company has decided to increase its use of chemicals by 10%. By what percentage has multifactor productivity fallen? O A. 3.9% OB. 5% O C. 12.7% O D. 2.4% OE. 6.5%

A cleaning company uses $20 of chemicals, $50 of labor, and $10 of misc. expenses for each house it cleans. After some quality complaints, the company has decided to increase its use of chemicals by 10%. By what percentage has multifactor productivity fallen? A. 3.9% B. 5% c. 12.7% D. 2.4% E. 6.5%