Refer to the information in the preceding problem, but now assume that the tax rate is 30%

Question:

Refer to the information in the preceding problem, but now assume that the tax rate is 30% and that you are not ignoring taxes.
Equipment is subject to 20% CCA rate declining balance for income tax purposes.
REQUIRED
1. Calculate the NPV of the project without inflation.
2. Calculate the NPV of the project with inflation.
3. Should Cost-Less buy the new cash registers?