A 10% loss requires a 12% increase to recover the investment, a 20% loss requires a 25% increase to recover the investment. A 30% loss requires a 42.86% increase to recover the investment, a 40% loss requires a 66.67% increase to recover the investment. A 50% loss requires a 100% increase to recover the investment, a 60% loss requires a 150% increase to recover the investment. A 70% loss requires a 233.33% increase to recover the investment, a 80% loss requires a 400% increase to recover the investment. A 90% loss requires a 900% increase to recover the investment. How much increase do you need to recover the investment?