How to recover when you are down 90% of your portfolio?

[ayazfx]

Consider a bear market with a 30 percent drop in value, down to 70 percent of what the stock portfolio was worth. A 10 percent gain returns the portfolio to 77 percent. The next 10 percent recovers to 84.7 percent. Two more 10 percent gain years put the portfolio back to 102.5 percent of the value before the drop