Problem:
Apple Corp sold 80000 units providing a profit of 60000. The unit margin of safety for the period was 40000 units. if the company increases its advertising expenses next period by 20000, it sales will increase to 100000 units.
Required:
What would be the new net income next period?
A. 70000
B. 80000
C. 90000
D. 30000
Note: Please show how to work it out.