What the rule measures and why the stage matters
Every firm on this list computes the same ratio: your single best day divided by total profit over the window the firm defines (the whole evaluation, or the profit accumulated since your last payout). If the ratio is above the firm's percentage, you are not blocked from trading; you are blocked from passing or from requesting a payout until more profit on other days brings the best day's share down.
Worked example: a $2,000 best day. Under 50% you need $4,000 total profit. Under 40% you need $5,000. Under 35% you need $5,715. Under 30% you need $6,667. Under 20% you need $10,000. The percentage moves the required total by a factor of 2.5 between the loosest and tightest plans above.
A rule during the evaluation costs you time once. A rule at payout costs you time on every withdrawal, because the window resets after each approved payout at firms like Apex and Lucid. That is why the right-hand column matters more to a funded trader than the left.