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Required information

$[$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$)$:

$\backslash$table$[[$Sales$,$$$105,000$

$1-$if the selling price increase by $$2$ per unit and the sale volume decrease by $100$ units, what would be the net operating income?

$2-$if the variable cost per unit increase by $$1$ spending on advertising increase by $$1,950$ and unit sales increase by $290$ units what would be the net operating income?

$5-$ what is the break$-$even point in unit sales?

$6-$ what is the break$-$even point in dollar sales?

$7-$ how many units must be sold to achieve a target profit to $$18,900?$Number of units

$8-$ what is the margin of safety in dollars $?$ What is the margin of safety percentage $?$