I need a clearer understanding of how to solve: John used to go to the gym multiple times a weak but because of lockdowns he hasn't been able to go.  He used to lift 700 for squat, 400 for bench, and 800 for deadlift.  For squat he lost 30% of his lift.  He didn't lose any weight on bench because he was able to train that at home and he lost 200 pounds on deadlift.  What is his new total?