10% lower and 10% higher of 100 I'm confused about how to get the $10\%$ higher and $10\%$ lower of $100$. I'm alone I don't know if my idea is correct.  My idea is $10\%$ higher of $100$ is $110$, then the $10\%$ lower of $100$ is $90$, then the range $10\%$ higher and $10\%$ lower of $100$ is between $90$ to $110$?

I think you are right. $10\%$ higher of $100$ will be $110$ and lower will be $90\%$ .
