Your math might be right but your reading skills lag behind. I did two 10KP+ games (meaning kills assists) = 20 KP or there about, and one game with 2500 damage in it ... so you can't do math as there are not further math to be done. Solved it for you...Karen.
Also if you needed my average damage, no math was needed, it is right there in screenshots between 400-500. And that usually comes from games where I have 0 chances due to before discussed and do <500 damage and games where my team is ok / we don't instantly run into cheaters = there I do usually close to or a bit above 1000 damage. Games that I win I usually take 2-4 fights which matches the math and before mentioned example = 2000k or there about as I usually don't damage farm / thirst people but play to win and damage is just byproduct of that.