/** `Intl.NumberFormat`-based formatter for NumberField: formatting is off without `locale`/`formatOptions`, and percent values are fractions (`0.5` → `50%`). */
export declare function formatNumberValue(value: number, locale?: string, formatOptions?: Intl.NumberFormatOptions): string;
/** Parses text the user typed or pasted back into a number, tolerating everything {@link formatNumberValue} can emit, returning `NaN` when the text holds no number. */
export declare function parseNumberValue(text: string, locale?: string, formatOptions?: Intl.NumberFormatOptions): number;