/**
 * gets the amount difference plus the % change in change itself (second order change)
 * @param {*} valueNow
 * @param {*} value24HoursAgo
 * @param {*} value48HoursAgo
 */
export declare const get2DayChange: (valueNow: string, value24HoursAgo: string, value48HoursAgo: string) => [number, number];
/**
 * get standard percent change between two values
 * @param {*} valueNow
 * @param {*} value24HoursAgo
 */
export declare const getPercentChange: (valueNow: string | undefined, value24HoursAgo: string | undefined) => number;