Mixing Company manufactured 1,500 units of its only product during 2022. The inputs for this production are as follows: 450 pounds of Material A at a cost of $1.50 per pound 300 pounds of Material H at a cost of $2.75 per pound 300 direct labor hours at $20 per hour The firm manufactured 1,800 units of the same product in 2021 with the following inputs: 500 pounds of Material A at a cost of $1.20 per pound 360 pounds of Material H at a cost of $2.50 per pound 400 direct labor hours at $18 per hour In 2022, the partial operational productivity of Material A is: 0.30 0.45 . 222. 3.33 500