Paper Submarine Manufacturing Is Investigating a Lockbox System to Reduce

Paper Submarine Manufacturing is investigating a lockbox system to reduce its collection time. It has determined the following: The total collection time will be reduced by 2 days if the lockbox system is adopted. What is the NPV of adopting the lockbox system?

A) $600,000
B) $775,000
C) $975,000
D) $1,200,000
E) $1,425,000