The Earth is strongly disturbed by the impact, but loses little mass.
100 percent of the Earth is melted
Depending on the direction and location the collision, the impact may make a very small change in the tilt of Earth's axis (< half a degree).
Depending on the direction and location of impact, the collision may cause a change in the length of the day of up to 135 hours.
The impact does not shift the Earth's orbit noticeably.
I made the earth a liquid planet with 159 hour days!