Question is krishnav Ltd. A multi-product company, furnishes you the following data relating of current and previous year. In column one. Year 2021 sales 90,000 profit 10,000 . In column 2nd year 2022 , 100000 sales , profit 14000. Assuming that there is no changes in prices and variable costs and that the fixed expenses are incurred equally in the both years, calculate for the year 2022, (1) the profit -volume ratio, (2) fixed cost, (3) break - even sales and (4) margin safety.