A stock decrease in value by 80%, by what percent must the stock price increase to formers values ?

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yes

step-by-step explanation:

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1

you first to choose the points and then move from then as the slope you have