solve and explain each step

The fixed cost for the year 199596 is Rs. 80,000 . The estimated sales for the period are valued at Rs. 2, 00,000. The variable cost per unit for single product made is Rs. 4.00. If each unit sells at Rs. 20 and the number of units involved coincides with the expected volume of output, construct the Break-even chart and determine the following (i) Break even point (ii) How many units the company should produce in order to seek profit (iii) The profit earned at a turnout of Rs. 1,60,000 (iv) the margin of safety (v) the angle of incidence