Problems about the energey

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.

I heard about that 1 hp = 0.5% energy for secondary move and I have done a test with my 200 hp snorlax in gym, the energy bar went full when it was killed. I think it turns out to be true.
So, I am wondering how is the energy calculated when we attack, should it determined by the damage you cause or as now listed in the Moves list, having a fixed value.