Function rating_to_percent 

pub fn rating_to_percent(
    rating: f64,
    rating_type: RatingType,
    divisor: f64,
    curves: &ResolvedCurves,
) -> Result<f64, StatsError>

Convert a raw rating to effective percent points via the DBC DR curve.

Errors

Returns an error when the required diminishing-returns curve is unavailable.