Erkkila Incorporated reports that at an activity level of 2,100 machine-hours in a month, its total variable inspection cost is $69,846 and its total fixed inspection cost is $9,072.

What would be the total variable inspection cost at an activity level of 2,400 machine-hours in a month? Assume that this level of activity is within the relevant range.

Note: Round intermediate calculations to 2 decimal places.