The costs of a company's call center for a number of recent months are listed below: April May Call Center Cost Calls Taken 6,304 $ 68,344 6,273 $ 68,132 June 6,314 $ 68,415 July 6,312 $ 68,389 August 6,275 $ 68,135 September 6,286 $ 68,194 October 6,331 $ 68,510 November 6,321 $ 68,466 Management believes that the cost of the call center is a mixed cost that depends on the number of calls taken. Required: Estimate the variable cost per call and fixed cost per month using the least-squares regression method. (Round the "Variable cost" to 2 decimal places and the "Fixed cost" to the nearest dollar amount.) Variable cost Foxed cost per call per month