I know that the correct answer is C, but I need the manual work (not using excel).

. G-III Apparel is considering increasing the size of a warehouse. The cost of the expansion is $825,000, and the increase in inventories and accounts payable will be $410,000 and $360,000, respectively. G-III expects that the expansion will increase net cash flows by $150,000 a year for the next 5 years and $200,000 a year for years 6-12. G-III has a 14% cost of capital and a marginal tax rate of 35%. What is the NPV of the warehouse expansion? a. -$3,450 b. $60,050 c. $10,050 d. -$338,570