Rescue From Being Trapped:

Loss of 10%, needs to rise 11% to break even

Loss of 20%, needs to rise 25% to break even

Loss of 30%, needs to rise 42.86% to break even

Loss of 40%, needs to rise 66.67% to break even

Loss of 50%, needs to rise 100% to break even

Loss of 60%, needs to rise 150% to break even

Loss of 70%, needs to rise 233.33% to break even

Loss of 80%, needs to rise 400% to break even

Loss of 90%, needs to rise 900% to break even

Loss of 100%, then it's very hard to earn it back (Game Over)