The initial share price first fell by 20% and then this new price rose by 20%. The final share price is CZK 1,296. Calculate the initial share price.

The result is 1350, but I don't know how to get there :) Thank you for the answers :)
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1 Answer

Answer :

We express an unknown x. The initial share first decreased by 20% (1-20 / 100) and then this new price increased by 20% (1 + 20/100) and the resulting share price is 1296. x * (1 - 20/100) * (1 + 20/100) = 1296 x * (0.8) * (1.2) = 1296 x 0.96 = 1296 x = 1296: 0.96 x = 1350
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