How can we get 644 here?

Question 12 0 / 10 pts Matt has been following the recent bankruptcy of the largest utility provider in the state of California, Pacific Gas & Electric (ticker: PCG). PCG's electrical power generating equipment is the prime suspect in the cause of the Northern California wildfire in November, 2018 that wiped out the town of Paradise, California. Matt decided to open a 200 share short stock position in Pacific Gas & Electric. When he opened his position, the bid price for PCG was $22.00 and the offer price was $23.50 When he closed his position a year later, the bid price for PCG was $17.90 and the offer price was $18.00 The commission rate is 2.5% The risk-free annual interest rate is 2.5% The annual short rebate rate is 1% Assuming simple compounding of interest, what is Matt's gain or loss? Please round your answer to the nearest integer dollar. You Answered 4 Correct Answers O (with margin: 0) 644 (with margin: 0) O (with margin: 0) 0 (with margin: 0) Question 12 0 / 10 pts Matt has been following the recent bankruptcy of the largest utility provider in the state of California, Pacific Gas & Electric (ticker: PCG). PCG's electrical power generating equipment is the prime suspect in the cause of the Northern California wildfire in November, 2018 that wiped out the town of Paradise, California. Matt decided to open a 200 share short stock position in Pacific Gas & Electric. When he opened his position, the bid price for PCG was $22.00 and the offer price was $23.50 When he closed his position a year later, the bid price for PCG was $17.90 and the offer price was $18.00 The commission rate is 2.5% The risk-free annual interest rate is 2.5% The annual short rebate rate is 1% Assuming simple compounding of interest, what is Matt's gain or loss? Please round your answer to the nearest integer dollar. You Answered 4 Correct Answers O (with margin: 0) 644 (with margin: 0) O (with margin: 0) 0 (with margin: 0)