You work as a junior treasury analyst at First Plan Ltd. Due to the developments in the financial markets in lieu of the COVID-19 situation, your company decided to liquidate its long-term investments and look for profitable opportunities in the money market. You were assigned the responsibility of undertaking money market trades. Consequently, you contacted Gotham Bank and bought 90-day bank bills at the following rates:

bid / ask: 3.23 / 15

After 21 days you called Metropolis Bank and sold these bank bills at the following rates:

bid / ask: 3.50 / 42

If the face value of the bank bills is $100,000 calculate the dollar value of profit earned over the 21-day holding period.