Mixing Company manulactured 1,550 units of its only producl during 2022 . The inputs for this production are as follows: 455 pounds of Material A al a cost of $1.55 per pound 305 pounds of Malerial H al a cost of $2.80 per pound 320 direct labor hours at $22 per hour The firm manufactured 1,886 units of the same product in 2021 with the following inputs: 510 pounds of Malerial A at a cost of \$1.25 per pound 370 pounds of Malerial H al a cost of $2.55 per pound 410 direct labor hours at $20 per hout The partlal direct labot operational productivity in 2021 is