On day 1, bid price is $60.00 and ask price is $60.40. On day 2, bid price is $60.90 and ask price is $61.20. Compute profit for buying 300 shares on day 1 and selling them on day 2 if commission is 1) $20 per transaction; 2) 0.5% of transaction value.

The correct answer is 1) $110, 2) $31.95.. I just don't know how to get their using a financial calculator. Can you please show me using a financial calculator.