Dirtt Corporation is studying the profitability of a change in operation and has gathered the following information: Sales in units Selling price Nariable cost Fixed costs Current Operation Proposed Operation 340,000 425,000 $ 30 $ 25 $ 12 $ 10 $360,000 $ 450,000 How many sales dollars will Dirtt have to generate to earn an $195,000 net operating income under the Proposed level of operations