/**
 * Calculate the inflation-adjusted real return from a nominal return.
 *
 * @param nominalRate Annual nominal return in percentage
 * @param inflationRate Annual inflation rate in percentage
 * @returns Real return as a percentage
 *
 * @example
 * calculateRealReturn(10, 5);
 * // => 4.761904761904762
 */
export declare function calculateRealReturn(nominalRate: number, inflationRate: number): number;