Stock loss calculator: How much does the stock need to rise again?
A price fall of 20% is not recovered by a subsequent rise of 20%. The rise is calculated on a smaller amount. Here you can see how large a percentage rise is needed to get back to the starting point.
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Enter either the loss in percent or the original and current price. The calculator shows the required rise and, with prices entered, the difference per share.
The formula for recovering a loss
Required rise = 1 / (1 − loss percentage) − 1. A loss of 20% is written as 0.20. The result is multiplied by 100 to be shown in percent.
With share prices, you can instead divide the original price by the current price and subtract 1.
From a price of 100 to a price of 80
The stock has fallen 20, equal to 20%. To reach 100 again, it must rise 20 from the new price of 80. That is a rise of 25%.
If the price falls from 100 to 50, a doubling of 100% is required. A fall of 80% requires a subsequent rise of 400%.
What the calculation can be used for
The calculation makes the relationship between a fall and a rise clear. It does not tell you whether or when the price will come back. With a total loss to zero, no finite percentage rise can restore the amount.
Only prices are compared here. Dividends received and trading costs can change your total result. Use the stock return calculator if you want to include those amounts.