Could a silver car have caused this damage and rough estimate on how much it’d cost to fix.

Hi, last night I parked my car in a private parking lot (pay by plate, no assigned spots) and when I came back someone had hit my right rear bumper. I have a dash cam so I got a video of the car parked next to me when I pulled in. My question is is could the silver car that was parked next to me have caused this damage cause it almost seems like white paint that rubbed off on my car but the car that was originally parked next to me was silver. Bonus points for a rough estimate of how much it’d cost to fix my bumper (2017 lexus CT 200h).