Function pct_change

pub fn pct_change(
    beginning_value: Decimal,
    ending_value: Decimal,
) -> Option<Decimal>

Percentage Change

The percentage change is a measure of the relative change in value between two points in time.

Arguments

• beginning_value - The initial value or starting point
• ending_value - The final value or ending point

Returns

• The percentage change as an Option containing a Decimal or None if there is a division by zero.

Formula

$$\% \Delta = \frac{\mathrm{Ending\ Value} - \mathrm{Beginning\ Value}}{|\mathrm{Beginning\ Value}|}$$

Example

• Beginning value of $1000, ending value of $1500

use rust_finprim::rate::pct_change;
use rust_decimal_macros::*;

let beginning_value = dec!(1000);
let ending_value = dec!(1500);

let result = pct_change(beginning_value, ending_value);