Money & WorkFact
After minus 50% you need plus 100%.
Losses and gains aren't symmetric. If an investment falls from €100 to €50, that's a 50% loss. To get back to €100 it has to double, a 100% gain. After a 20% loss you need 25%, after a 10% loss still 11%. The deeper the crash, the disproportionately larger the climb back.
Useful: Avoiding big losses matters more than chasing big gains.
Source: en.wikipedia.org