Firm commitment versus best efforts. Astro Investment Bank offers Lunar Vacations the following options on its initial public sale of equity. (a) a best efforts arrangement whereby Astro will keep 2.9% of the retail sales or (b) a firm commitment arrangement of $10,200,000 Lunat plans on offering 1,000,000 shares at $11,85 per share to the public If it selis 100% of the shares, which is the belter. choice for Lurar Vacations? Which is the botter choice for Astro Investment Bank