Not sure what are you asking? What is the % of BW “used” in exercises? Push-up is around 70% (the easiest is to get on the scale and check). Squat is around 90%.
What load to use? Dan Baker recommends using 50% of load used in heavy grinding lifts in that particular week, e.g.:
Session 1: Back Squats 3×5 @80%
Session 2: Squat Jumps 3×5 @40%