This graph shows how much profit is needed to compensate for the losses. The horizontal line shows a loss of -10% to -90%, the vertical line shows a profit of 11% to 900%.
Everyone probably knows that if the portfolio sagged by 50%, it needs to grow by 100% in order to recover, so this graph just clearly shows this dependence.
For example, if you bought TAL at $55, you now need 900% growth just to break even.
