What is my potential energy if I weigh 60kg and I jump 3 meters in the air?
2 answers
Gravitational potential energy, relative to ground level, is mgh=60kg*9.8N/kg*3m=60*9.8*3 joules
Your formula is correct and it gives us pleasure to see you have shown your work.
You still need to do the multiplication, of course
You still need to do the multiplication, of course