I want to take the derivative of $\displaystyle \left(\frac{1976}{x}\right)^x $

Using the chain rule, i got $\displaystyle \left(\frac{-1976}{x}\right)\left(\frac{1976}{x}\right)^{x-1} $

But I know this is an increasing function (so the derivative should not be negative) and so I am kind of confused. Please help.