Position to pixel coords from 2 points

Hi, I would like to create a 2D Map where the player can see his position(like a gps system). But how do I calculate the pixel position from the player position? I create everytime a new map, but I have two static points where I know they Player and pixel coordinations. Position 1: World Position: 330, -425 Pixel Position: 27,605

Position 2: World Position: 296, 162 Pixel Position: 87, 49

I searched a lot, but i couldnt find any help. So thank you very much for your answers!