[The following information applies to the questions displayed below.] Oslo Company prepared the following contribution format income statement based on a sales volume of 1.000 units (the relevant range of production is 500 units to 1.500 units): 5. If sales decline to 900 units, what would be the operating income? The following information applies to the questions displayed below] Oslo Company prepared the following contribution format income statement based on a sales volume of 1,000 units (the relevant range of production is 500 units to 1,500 units): 5. If the selling price increases by $2 per unit and the sales volume decreases by 100 units, what would be the operating income