At an activity level of 8, 900 machine-hours in a month. Curt Corporation's total variable production engineering cost is $760, 060 and its total fixed production engineering cost is $152, 880. What would be the total production engineering cost per machine-hour, both fixed and variable, at an activity level of 9, 100 machine-hours in a month? Assume that this level of activity is within the relevant)e. (Do not round Intermediate calculations.) $102.38 $101.31 $101.85 $102.20