One hundred and one discrete labels
The output is an integer percentage from 0% through 100%, inclusive. That gives 101 possible labels, each with probability 1/101, approximately 0.99%. This differs from drawing a continuous rate and rounding it: the page chooses a label directly, so 50% has exactly the same chance as 1% or 100%.
Worked case: a fictional game modifier
A game rule might say that a treasure bonus equals a random whole percentage. If the display shows 73%, a base reward of 80 points becomes 80 × 0.73 = 58.4 bonus points under that stated rule. The number 73% does not itself mean an event has a 73% real-world chance; the game must specify whether it is a threshold, multiplier, or score.
Percentage points are not relative change
A move from 20% to 30% is an increase of 10 percentage points, but it is a 50% relative increase because 10 is half of 20. A randomly selected label supplies neither baseline nor denominator. Write the operation beside the result whenever a rule converts the label into an amount or an outcome.
Where random rates do not belong
A generated percentage is not an insurance quote, medical risk estimate, weather probability, investment return, confidence interval, or audit design. It also cannot make 5% intentionally rarer than 95%; that would require weighted outcomes. Use observed data and a defined method whenever a percentage describes a consequential real-world claim.
Turn the label into a rule explicitly
Before using a result, write an expression such as reward × percentage, roll succeeds when roll is at most percentage, or score plus percentage points. Those instructions behave differently at 73%. A percentage sign is notation, not an operation; the surrounding rule provides the denominator, comparison, and rounding treatment. Show one completed calculation to participants whenever the result changes a reward, score, or turn.
Questions about this selection rule
Can it show 0% and 100%?
Yes. Both endpoints are included among the 101 labels.
Is 50% favoured?
No. Middle and endpoint labels have equal selection chance.
Does it produce 12.5%?
No. This tool is deliberately limited to whole percentage points.
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