conventions - Traveling Wave Equation $sin(kx-wt)$ vs $sin (wt-kx)$

In my textbook most if the times it uses $A\sin(wt-kx)$, but occasionally there is a problem using $A\sin(kx-wt)$

So i just changed it from $A\sin(kx-wt) \to -A\sin(wt-kx)$ but does the amplitude change to $-A$? Is the wave going downwards first?(as negative amplitude would imply)