Answer:
a. Accounting profits.
Account profit = Revenue - explicit cost
= 160,000 - 55,000
= $105,000
Present value of $105,000 per year for 3 years is:
= 105,000 * Present value interest factor of an Annuity, 3 years, 5%
= 105,000 * 2.7232
= $285,936
b. Economic profit
Economic profit = Revenue - explicit cost - implicit cost
= 160,000 - 55,000 - 70,000
= $35,000
Present value of $35,000 per year for 3 years:
= 35,000 * Present value interest factor of an Annuity, 3 years, 5%
= 35,000 * 2.7232
= $95,312
Note: The profits were treated as annuities as they were constant.