I agree with the way you wrote the rest of this reply except for the math at the end.
$10k in an account, 10% for each trade = $1k per trade
4 wins = +$4,000
6 losses = -$2,400
4000-2400 = +$1600
1600/10,000 = 16%, not 160%.
Then again, you can do that over and over throughout a year...