Please I need help, I have very Few time!!

QUESTION U FIRST Following information is provided for next month operations of a retail store. BUDGETED DATA Sales units 800 % $ Sales 100.0% 4000 Purchase cost of sales* 55.0% 2200 Sales commission 10.0% 400 Sales packaging* 5.0% 200 Shop rental per month 400 Staff salaries per month 200 Profit 600 * Calculated as a % of sales. Marks Required: Calculate contribution margin per unit Calculate contribution margin ratio (%). 1 2 Calculate Break Even Point in units per month Calculate Break Even Point in $ per month 1 1 1 Calculate safety margin in $ at above sales. Calculate safety margin in units at above sales. Calculate safety index in % at above sales. Calculate operating leverage at above sales. What % increase in sales is necessary to double its above profit? 1 Required sales in units to achieve target profit of Profit earned if sales in $ increase to 840 5000 Total 2 2 14 NNT