Function rust_finprim::amort_dep_tax::syd

pub fn syd(
    cost: Decimal,
    salvage: Decimal,
    life: u32,
    round: Option<(u32, RoundingStrategy)>
) -> Vec<DepreciationPeriod>

Sum of the Years Digits - SYD

Calculates the depreciation schedule for an asset using the sum of the years’ digits method. The sum of the years’ digits method is an accelerated depreciation method that allocates more depreciation expense to the early years of an asset’s life.

Arguments

• cost - The initial cost of the asset
• salvage - The estimated salvage value of the asset at the end of its useful life
• life - The number of periods over which the asset will be depreciated
• round (optional) - A tuple specifying the number of decimal places and a rounding strategy for the amounts (dp, RoundingStrategy), default is no rounding of calculations. The final depreciation expense is adjusted to ensure the remaining book value is equal to the salvage value. rust_decimal::RoundingStrategy::MidpointNearestEven (“Bankers Rounding”) is likely what you are looking for as the rounding strategy.

If rounding is enabled, the final period will be adjusted to “zero” out the remaining book value to the salvage value.

Returns

• A vector of DepreciationPeriod instances representing each period in the depreciation schedule.

Examples

• $10,000 asset, $1,000 salvage value, 5 year life

use rust_finprim::amort_dep_tax::syd;
use rust_decimal_macros::*;

let cost = dec!(10_000);
let salvage = dec!(1_000);
let life = 5;
let schedule = syd(cost, salvage, life, None);