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TMI sells a colorectal surgical stapler, with a unit price of $7,500. Unit costs are $3,200. Fixed costs are 200,000 . The tax rate is 21%. They are uncertain about sales for next year, with one forecast of 50 units sold and one of 80 units sold. What is the difference in NOI between these two forecasts? TMI sells a colorectal surgical stapler, with a unit price of $7,500. Unit costs are $3,200. Fixed costs are 200,000 . The tax rate is 21%. They are uncertain about sales for next year, with one forecast of 50 units sold and one of 80 units sold. What is the difference in NOI between these two forecasts