You receive the following information:

Sales price per unit R120

Variable cost per unit R80

Total fixed cost R120000

Tax Rate 28%

Required:

1. Calculate the number of units to be sold to break-even
2. Calculate the number of units to be sold to achieve a pre-tax profit of R5000
3. Calculate the number of units to be sold to achieve a after tax profit of R12500
4. Calculate the number of units to be sold to achieve a pre-tax profit of 10% of total sales