Save & E At an activity level of 6,100 units in a month, Goldbach Corporation's total variable maintenance and repair cost is $444,690 and its total fed maintenance and repair cost is $138,470. What would be the total maintenance and repair cost, both fixed and variable, at an activity level of 6,300 units In a month? Assume that this level of activity is within the relevant range. Multiple Choice $597740 $602.280 O $592.720 5583360 MacBook SO * $ 4 % 5 & 7 2 9 0 8 2 6 3 O W E R Y T U S D F L K H J V B N X E