Accounting In an industrial workshop, a machine operator's production report at the end of the day indicates what following: Hours to control: 11; Hours of stoppage: 1; Pieces manufactured: 90; Machine time: 2.5 minutes; Operator time at machine stopped: 0.75 minutes; Machine running time: 3.5 minutes. If the operator's salary is $ 8,500.00 / month working daytime, determine: a) Price of the premium point; b) price of the prime hour; c) Activity achieved (interpret result); d) Bonus achieved.