the eco of Newwak inc. has provided you with the following information for its operation for 2013. Dollar figures are in thousands

sale revenue $200

cost of goods sold 120

total contribution margin 100

fixed costs: manufacting 40

fixed costs: selling and administrative 20

variable selling expense 20

the tax rate for Newark is 25% if they want to increase the after-tax income for 2014 by $12, by how much do they have to increase their sales revenue? assume everything else stay constant