/**
 * Calculate percentage value
 * @example
 *  jssPercentage(720, 1280)      // => '56.25%'
 *  jssPercentage(9, 16)          // => '56.25%'
 *  jssPercentage(9, 16, true)    // => 56.25
 *  jssPercentage(9, 16, true, 1) // => 56.2
 */
export declare function jssPercentage(
	part: number,
	full: number,
	returnAsNumber?: boolean,
	fractionDigits?: number
): string | number;