Fixed Stake vs Percentage of Bankroll: A Numerical Comparison
Compare a fixed unit with 2% of the remaining balance after a losing run, and see how the stake share changes under each method.
Two ways to size a stake
With a fixed stake, you choose the same cash amount each time, such as 200 units. With a percentage approach, each stake is a share of the current balance: 2% of 10,000 is 200, while 2% of a reduced 8,000 balance is 160. “Fixed” refers to the nominal amount; “percentage” refers to the share of the remaining bankroll. Neither method is automatically safe or profitable.
Compare ten full losses from a starting balance of 10,000 at a 200-unit stake. Fixed staking leaves 10,000 − 10 × 200 = 8,000, a 20% loss of the initial bankroll. If each losing stake is 2% of the current balance, the balance is 10,000 × 0.98^10 ≈ 8,170.73. Percentage staking reduces the cash amount of each later bet as the balance falls, but it does not remove the loss.
The risk share changes under a fixed amount too. After a fall to 8,000, a 200-unit stake is now 2.5% of the balance. The same nominal stake represents a larger share after a losing run. Under a percentage plan, the amount must be recalculated from a defined base with a stated rounding rule. If the percentage is applied to the initial bankroll rather than the current one, the result differs. Write down the formula before evaluating it; do not change it retrospectively.
Limits of the comparison
This example assumes every bet loses in full, with no wins, pushes, taxes, limits, or rounding. Real markets and odds change returns, but they do not remove the possibility of losing the amount staked. Keep housing, debt, and everyday expenses outside any gambling budget; do not borrow to continue. A limit reached is not a reason to deposit more or chase losses.
Compare the methods by absolute loss, share of remaining funds, and a pre-set limit. Do not increase a stake after a loss to “get it back.” A record such as a betting journal and an understanding of bankroll drawdown help track the arithmetic. Tracking explains what happened; it does not guarantee a result.
Practical check
Set a spending limit for the period using only money left after essential bills. Stop when the limit is reached; do not alter the percentage or fixed amount retrospectively. With percentage staking, the nominal amount falls with the balance but still risks part of what remains; with a fixed stake, its share grows after losses. Do not borrow or use money for rent and bills. No stake-sizing formula removes the risk of losing the full amount.