Spencer Inc. manufactures a product that costs $77 per unit plus $24,000 in fixed costs each month. Spencer currently sells 1,000 of these units per month for $145 each. If Spencer leased a machine for $5,000 a month, it could add features to the product that would allow it to sell for $185 each. It would cost an additional $22 per unit to add these features. How much would Spencer's profit be affected if it leased the machine and added features to its product?

a) Increase $24,000

b) Decrease $24,000

c) Increase $13,000

d) Decrease $13,000