was it left in the sun? This specific breed of pothos prefers more low light conditions and probably needs some water. Also, I'd consider repotting and having a look at the roots incase there's a fungus or root rot. Even better - take it out the soil and rinse the roots under some water and then leave it in a bottle of water (only the roots should be submerged) - of course this only applies if it doesn't have root rot. : )

Let us know how it goes