Your firm is selling 2 million shares in an IPO. You are targeting an offer price of $17.21 per share. Your underwriters have proposed a spread of 5.7%, but you would like to lower it to 3.7%. However, you are concerned that if you do so, they will argue for a lower offer price. Given the potential savings from a lower spread, how much lower can the offer price go before you would have preferred to pay 5.7% to get $17.21 per share? The offer price would need to drop to $ (Round to the nearest cent.)