Answer: $1473.067
Step-by-step explanation:
First, we calculate the total time that's saved by the firm when it installs the lockbox services. This will be:
= 2.2 days + 0.75 days
= 2.95 days
Then, the gross amount that the firm will save will be:
= 65 × 2.95 × 298 × 0.01%
= $5.7142 per day
Since the bank charges the firm $0.15 per check and the firm receives 65 checks per day, the total cost to the firm will then be:
= 65 × $0.15
= $9.75 per day
The net loss will then be calculated as:
= $9.75 - $5.7142
= $4.0358 per day
Then, to get that for annual, we multiply the above value by 365. This will be:
= $4.0358 × 365
= $1473.067 per annum.