Question for those who operate from multiple accounts on sports betting to get the best odds.

When you find a bet, and decide to place a 5% wager, do you do 5% of just that wallet, or total of all accounts? Ideally I guess it would be 5% of all accounts, but wouldnt take much to empty that account after a couple of losses. Is it just a case of good accoutnancy and juggling our funds between the different books?