Your best day, against the cap.
Some programs cap how much of your total may come from one day. Type the cap and your daily results to see where you stand and what total brings the best day under it.
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What it reads, and how it is computed.
What it reads
Two things you type: the cap your program sets on the best day, as a percent of the total, and your result for each day so far in dollars. The best day is the largest single day. The total is every day added together, losing days included.
How it is computed
best-day share = best day ÷ total
Total needed = best day ÷ cap
more needed = total needed − total, and zero once the share is at or under the cap.
Worked example: daily results of $450.00, -$200.00, $1,200.00, $300.00, -$150.00, $600.00 add up to $2,200.00. The best day is $1,200.00, which is $1,200.00 ÷ $2,200.00 = 54.5% of the total. Under a 40% cap the total needed is $1,200.00 ÷ 0.40 = $3,000.00, so $3,000.00 − $2,200.00 = $800.00 more has to come from other days. If the total is zero or below, the share is shown as n/a, because a share of a total that is not above zero means nothing.
Why that information matters
One large day sets the total you need for the rest of the evaluation. Knowing that number turns the rule into a plain target in dollars, and it shows why one oversized day can add days to the work instead of taking them away.
What it does not tell you
Whether your program has a consistency rule at all, which days it counts, or over what window. Programs word this rule differently (some count only winning days, some measure a different window), so read your program’s own, current rules page. It does not know how your trades will go. This is arithmetic, not advice.
Consistency rules, answered.
How do I calculate a prop firm consistency rule?
Divide your best day by the cap. With a best day of $1,200.00 and a 40% cap, the total has to reach $1,200.00 ÷ 0.40 = $3,000.00 before the best day sits at or under the cap. Your total now is $2,200.00, so that is $800.00 more.
What happens to the total needed after a bigger day?
It rises. The rule measures your single best day, so a new best day sets a new total needed. Days smaller than the best one add to the total without moving the target.
Do losing days count?
In this calculator they lower the total, which is how most programs word it. Some programs count only winning days or measure a different window. Read your own program, and type the results the way it counts them.
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